/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:03:32,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:03:32,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:03:32,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:03:32,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:03:32,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:03:32,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:03:32,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:03:32,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:03:32,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:03:32,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:03:32,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:03:32,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:03:32,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:03:32,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:03:32,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:03:32,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:03:32,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:03:32,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:03:32,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:03:32,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:03:32,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:03:32,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:03:32,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:03:32,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:03:32,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:03:32,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:03:32,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:03:32,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:03:32,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:03:32,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:03:32,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:03:32,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:03:32,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:03:32,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:03:32,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:03:32,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:03:32,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:03:32,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:03:32,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:03:32,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:03:32,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:03:32,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:03:32,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:03:32,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:03:32,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:03:32,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:03:32,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:03:32,533 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:03:32,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:03:32,534 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:03:32,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:03:32,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:03:32,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:03:32,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:03:32,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:03:32,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:03:32,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:03:32,536 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:03:32,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:03:32,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:03:32,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:03:32,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:03:32,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:03:32,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:03:32,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:03:32,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:03:32,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:03:32,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:03:32,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:03:32,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:03:32,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:03:32,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:03:32,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:03:32,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:03:33,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:03:33,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:03:33,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:03:33,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:03:33,052 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:03:33,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2021-10-13 19:03:33,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f52bbf84/807e7d0d95ae4c37a4997296d3d302be/FLAGf7ec45827 [2021-10-13 19:03:33,890 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:03:33,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2021-10-13 19:03:33,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f52bbf84/807e7d0d95ae4c37a4997296d3d302be/FLAGf7ec45827 [2021-10-13 19:03:34,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f52bbf84/807e7d0d95ae4c37a4997296d3d302be [2021-10-13 19:03:34,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:03:34,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:03:34,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:03:34,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:03:34,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:03:34,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56207206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34, skipping insertion in model container [2021-10-13 19:03:34,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:03:34,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:03:34,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2021-10-13 19:03:34,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:03:34,640 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:03:34,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2021-10-13 19:03:34,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:03:34,761 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:03:34,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34 WrapperNode [2021-10-13 19:03:34,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:03:34,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:03:34,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:03:34,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:03:34,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:03:34,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:03:34,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:03:34,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:03:34,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:03:34,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:03:34,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:03:34,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:03:34,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (1/1) ... [2021-10-13 19:03:34,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:03:34,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:34,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 19:03:34,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 19:03:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:03:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:03:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:03:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:03:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:03:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:03:35,051 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:03:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:03:35,052 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:03:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:03:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:03:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:03:35,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:03:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:03:35,056 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:03:36,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:03:36,012 INFO L299 CfgBuilder]: Removed 54 assume(true) statements. [2021-10-13 19:03:36,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:03:36 BoogieIcfgContainer [2021-10-13 19:03:36,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:03:36,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:03:36,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:03:36,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:03:36,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:03:34" (1/3) ... [2021-10-13 19:03:36,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fb939e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:03:36, skipping insertion in model container [2021-10-13 19:03:36,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:34" (2/3) ... [2021-10-13 19:03:36,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fb939e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:03:36, skipping insertion in model container [2021-10-13 19:03:36,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:03:36" (3/3) ... [2021-10-13 19:03:36,026 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2021-10-13 19:03:36,033 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:03:36,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:03:36,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-13 19:03:36,034 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:03:36,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,103 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,103 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,103 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,103 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,104 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,105 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,105 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,105 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,105 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,106 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,106 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,106 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,106 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,107 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,107 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,107 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,107 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,108 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,108 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,108 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,108 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,109 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,109 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,109 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,109 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,109 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,110 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,110 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,110 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,110 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,111 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,111 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,111 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,112 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,112 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,112 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,112 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,112 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,113 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,113 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,113 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,113 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,113 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,114 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,114 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,114 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,114 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,114 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,115 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,115 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,115 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,115 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,115 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,116 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,116 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,116 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,116 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,116 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,117 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,117 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,117 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,117 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,117 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,118 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,118 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,118 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,119 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,119 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,121 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,121 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,123 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,126 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,126 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,127 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,127 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,128 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,128 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,128 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,130 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,133 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,133 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,133 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,134 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,135 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,139 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,139 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,139 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,139 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,140 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,140 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,140 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,140 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,141 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,141 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,141 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,141 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,142 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,142 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,142 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,142 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,143 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,146 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,146 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,147 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,147 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,147 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,147 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,148 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,148 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,148 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,149 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,153 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,157 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,166 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,166 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,166 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,166 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,169 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,169 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,170 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,175 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,181 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,182 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,182 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,182 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,184 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,184 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,184 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,185 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,185 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,185 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,185 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,186 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,192 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,193 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,193 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,193 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,193 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,194 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,197 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,197 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,197 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,198 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,198 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,199 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,208 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,209 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,210 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,210 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,211 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,211 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,213 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,213 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,213 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,213 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,215 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,216 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,217 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,218 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,219 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,219 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,220 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,221 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,221 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,221 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,222 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,222 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,224 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,224 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,225 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,226 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,228 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,229 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,232 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,232 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,232 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,232 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,233 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,234 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,234 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,234 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,234 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,234 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,235 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,235 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,235 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,236 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,237 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,238 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,238 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,239 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,239 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,239 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,239 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,239 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,240 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,240 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,240 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,240 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,241 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,241 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,241 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,241 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,242 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,242 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,242 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,242 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,243 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,243 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,245 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,245 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,246 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,246 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,246 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,246 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,247 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,247 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,247 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,247 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,247 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,248 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,248 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,248 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,249 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,250 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,250 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,250 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,250 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,250 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,251 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,251 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,251 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,251 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,252 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,252 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,252 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,253 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,253 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,253 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,253 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,253 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,254 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,254 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,254 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,254 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,255 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,256 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,257 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,258 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,258 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,258 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,259 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,259 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,259 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,259 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,260 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,260 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,260 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,260 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,260 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,261 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,261 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,261 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,262 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,262 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,262 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,262 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,262 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,264 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,264 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,264 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,264 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,266 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,266 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,267 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,267 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,268 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,270 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,270 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,272 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,272 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,273 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,274 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,274 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,274 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,274 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,278 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,278 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,278 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,279 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,279 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,279 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,279 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,279 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,280 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,281 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,281 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,281 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,281 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,281 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,281 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,282 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,282 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,282 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,283 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,283 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,283 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,283 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,283 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,284 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,284 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,284 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,284 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,284 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,285 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,285 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,285 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,285 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,285 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,286 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,286 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,286 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,286 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,287 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,287 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,287 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,287 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,287 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,288 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,289 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,293 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,293 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,293 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,293 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,294 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,295 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,295 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,295 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,295 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,295 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,295 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,296 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,296 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,301 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,302 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,303 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,304 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,304 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,304 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,305 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,306 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,307 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,307 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,307 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,307 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#t~short37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,308 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,309 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,309 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,309 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,309 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,309 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,310 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,310 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:36,320 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 19:03:36,374 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:03:36,383 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 19:03:36,383 INFO L340 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2021-10-13 19:03:36,418 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:03:36,432 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 385 places, 412 transitions, 848 flow [2021-10-13 19:03:36,436 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 385 places, 412 transitions, 848 flow [2021-10-13 19:03:36,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 385 places, 412 transitions, 848 flow [2021-10-13 19:03:36,721 INFO L129 PetriNetUnfolder]: 37/409 cut-off events. [2021-10-13 19:03:36,721 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 19:03:36,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 409 events. 37/409 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 959 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 309. Up to 2 conditions per place. [2021-10-13 19:03:36,784 INFO L116 LiptonReduction]: Number of co-enabled transitions 40128 [2021-10-13 19:04:04,169 INFO L131 LiptonReduction]: Checked pairs total: 40870 [2021-10-13 19:04:04,170 INFO L133 LiptonReduction]: Total number of compositions: 518 [2021-10-13 19:04:04,181 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 63 transitions, 150 flow [2021-10-13 19:04:04,337 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:04:04,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:04,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:04:04,361 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:04,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:04,367 INFO L82 PathProgramCache]: Analyzing trace with hash 55537, now seen corresponding path program 1 times [2021-10-13 19:04:04,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:04,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159502166] [2021-10-13 19:04:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:04,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:04:04,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:04,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159502166] [2021-10-13 19:04:04,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159502166] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:04:04,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:04:04,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:04:04,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831616480] [2021-10-13 19:04:04,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:04:04,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:04,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:04:04,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:04:04,631 INFO L87 Difference]: Start difference. First operand has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:04,783 INFO L93 Difference]: Finished difference Result 3995 states and 13491 transitions. [2021-10-13 19:04:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:04:04,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-13 19:04:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:04,850 INFO L225 Difference]: With dead ends: 3995 [2021-10-13 19:04:04,850 INFO L226 Difference]: Without dead ends: 3995 [2021-10-13 19:04:04,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:04:04,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2021-10-13 19:04:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 2004. [2021-10-13 19:04:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1705 states have (on average 3.961876832844575) internal successors, (6755), 2003 states have internal predecessors, (6755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:05,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 6755 transitions. [2021-10-13 19:04:05,036 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 6755 transitions. Word has length 2 [2021-10-13 19:04:05,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:05,037 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 6755 transitions. [2021-10-13 19:04:05,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 6755 transitions. [2021-10-13 19:04:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:04:05,037 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:05,038 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:04:05,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:04:05,038 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1724608, now seen corresponding path program 1 times [2021-10-13 19:04:05,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:05,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400772543] [2021-10-13 19:04:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:05,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:04:05,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:05,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400772543] [2021-10-13 19:04:05,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400772543] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:05,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829783570] [2021-10-13 19:04:05,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:05,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:05,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:05,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:05,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 19:04:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:05,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:04:05,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:04:05,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829783570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:05,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:05,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:04:05,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092360427] [2021-10-13 19:04:05,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:04:05,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:05,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:04:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:04:05,294 INFO L87 Difference]: Start difference. First operand 2004 states and 6755 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:05,602 INFO L93 Difference]: Finished difference Result 5989 states and 20236 transitions. [2021-10-13 19:04:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:04:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-13 19:04:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:05,684 INFO L225 Difference]: With dead ends: 5989 [2021-10-13 19:04:05,684 INFO L226 Difference]: Without dead ends: 5989 [2021-10-13 19:04:05,685 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:04:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-10-13 19:04:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 2007. [2021-10-13 19:04:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1708 states have (on average 3.9601873536299768) internal successors, (6764), 2006 states have internal predecessors, (6764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 6764 transitions. [2021-10-13 19:04:05,926 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 6764 transitions. Word has length 3 [2021-10-13 19:04:05,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:05,926 INFO L470 AbstractCegarLoop]: Abstraction has 2007 states and 6764 transitions. [2021-10-13 19:04:05,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 6764 transitions. [2021-10-13 19:04:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:04:05,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:05,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:04:05,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 19:04:06,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:06,138 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:06,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1724610, now seen corresponding path program 1 times [2021-10-13 19:04:06,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:06,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912146492] [2021-10-13 19:04:06,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:06,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:04:06,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:06,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912146492] [2021-10-13 19:04:06,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912146492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:04:06,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:04:06,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:04:06,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969398370] [2021-10-13 19:04:06,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:04:06,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:06,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:04:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:04:06,308 INFO L87 Difference]: Start difference. First operand 2007 states and 6764 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:06,369 INFO L93 Difference]: Finished difference Result 2004 states and 6758 transitions. [2021-10-13 19:04:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:04:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-13 19:04:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:06,408 INFO L225 Difference]: With dead ends: 2004 [2021-10-13 19:04:06,408 INFO L226 Difference]: Without dead ends: 2004 [2021-10-13 19:04:06,409 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:04:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2021-10-13 19:04:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 2004. [2021-10-13 19:04:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1708 states have (on average 3.9566744730679155) internal successors, (6758), 2003 states have internal predecessors, (6758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 6758 transitions. [2021-10-13 19:04:06,512 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 6758 transitions. Word has length 3 [2021-10-13 19:04:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:06,513 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 6758 transitions. [2021-10-13 19:04:06,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 6758 transitions. [2021-10-13 19:04:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:04:06,514 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:06,514 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:04:06,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 19:04:06,515 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:06,515 INFO L82 PathProgramCache]: Analyzing trace with hash 53465809, now seen corresponding path program 2 times [2021-10-13 19:04:06,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:06,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954522647] [2021-10-13 19:04:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:06,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:04:06,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:06,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954522647] [2021-10-13 19:04:06,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954522647] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:06,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991592483] [2021-10-13 19:04:06,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:04:06,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:06,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:06,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:06,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 19:04:06,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:04:06,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:04:06,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:04:06,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:04:06,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991592483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:04:06,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:04:06,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:04:06,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684981730] [2021-10-13 19:04:06,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:04:06,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:06,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:04:06,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:04:06,734 INFO L87 Difference]: Start difference. First operand 2004 states and 6758 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:06,773 INFO L93 Difference]: Finished difference Result 2001 states and 6755 transitions. [2021-10-13 19:04:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:04:06,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-13 19:04:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:06,792 INFO L225 Difference]: With dead ends: 2001 [2021-10-13 19:04:06,792 INFO L226 Difference]: Without dead ends: 2001 [2021-10-13 19:04:06,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:04:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2021-10-13 19:04:06,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1995. [2021-10-13 19:04:06,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1702 states have (on average 3.961809635722679) internal successors, (6743), 1994 states have internal predecessors, (6743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 6743 transitions. [2021-10-13 19:04:06,879 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 6743 transitions. Word has length 4 [2021-10-13 19:04:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:06,879 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 6743 transitions. [2021-10-13 19:04:06,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:06,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 6743 transitions. [2021-10-13 19:04:06,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:04:06,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:06,917 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:06,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:07,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:07,120 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:07,120 INFO L82 PathProgramCache]: Analyzing trace with hash -794158046, now seen corresponding path program 1 times [2021-10-13 19:04:07,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:07,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098786373] [2021-10-13 19:04:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:07,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:04:07,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:07,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098786373] [2021-10-13 19:04:07,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098786373] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:04:07,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:04:07,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:04:07,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752745737] [2021-10-13 19:04:07,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:04:07,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:07,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:04:07,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:04:07,186 INFO L87 Difference]: Start difference. First operand 1995 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:07,226 INFO L93 Difference]: Finished difference Result 1998 states and 6746 transitions. [2021-10-13 19:04:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:04:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:04:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:07,241 INFO L225 Difference]: With dead ends: 1998 [2021-10-13 19:04:07,241 INFO L226 Difference]: Without dead ends: 1998 [2021-10-13 19:04:07,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:04:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2021-10-13 19:04:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1998. [2021-10-13 19:04:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1705 states have (on average 3.956598240469208) internal successors, (6746), 1997 states have internal predecessors, (6746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:07,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 6746 transitions. [2021-10-13 19:04:07,334 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 6746 transitions. Word has length 8 [2021-10-13 19:04:07,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:07,334 INFO L470 AbstractCegarLoop]: Abstraction has 1998 states and 6746 transitions. [2021-10-13 19:04:07,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:07,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 6746 transitions. [2021-10-13 19:04:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:04:07,335 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:07,336 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:07,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:04:07,336 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:07,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1797490622, now seen corresponding path program 1 times [2021-10-13 19:04:07,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:07,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176135710] [2021-10-13 19:04:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:07,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:04:07,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:07,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176135710] [2021-10-13 19:04:07,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176135710] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:07,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352956709] [2021-10-13 19:04:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:07,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:07,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:07,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:07,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 19:04:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:07,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:04:07,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:07,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:04:07,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352956709] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:07,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:07,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2021-10-13 19:04:07,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770667016] [2021-10-13 19:04:07,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:04:07,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:07,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:04:07,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:04:07,636 INFO L87 Difference]: Start difference. First operand 1998 states and 6746 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:07,692 INFO L93 Difference]: Finished difference Result 2001 states and 6749 transitions. [2021-10-13 19:04:07,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:04:07,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:04:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:07,705 INFO L225 Difference]: With dead ends: 2001 [2021-10-13 19:04:07,705 INFO L226 Difference]: Without dead ends: 2001 [2021-10-13 19:04:07,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:04:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2021-10-13 19:04:07,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 2001. [2021-10-13 19:04:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1708 states have (on average 3.951405152224824) internal successors, (6749), 2000 states have internal predecessors, (6749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 6749 transitions. [2021-10-13 19:04:07,779 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 6749 transitions. Word has length 11 [2021-10-13 19:04:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:07,779 INFO L470 AbstractCegarLoop]: Abstraction has 2001 states and 6749 transitions. [2021-10-13 19:04:07,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 6749 transitions. [2021-10-13 19:04:07,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:04:07,781 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:07,781 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:07,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:07,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:07,994 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:07,995 INFO L82 PathProgramCache]: Analyzing trace with hash 919740514, now seen corresponding path program 2 times [2021-10-13 19:04:07,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:07,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619370242] [2021-10-13 19:04:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:07,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:04:08,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:08,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619370242] [2021-10-13 19:04:08,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619370242] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:08,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277580551] [2021-10-13 19:04:08,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:04:08,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:08,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:08,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:08,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 19:04:08,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:04:08,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:04:08,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:04:08,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:04:08,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277580551] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:08,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:08,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-13 19:04:08,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638162442] [2021-10-13 19:04:08,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:04:08,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:04:08,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:04:08,466 INFO L87 Difference]: Start difference. First operand 2001 states and 6749 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:08,522 INFO L93 Difference]: Finished difference Result 2004 states and 6752 transitions. [2021-10-13 19:04:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:04:08,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:04:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:08,535 INFO L225 Difference]: With dead ends: 2004 [2021-10-13 19:04:08,535 INFO L226 Difference]: Without dead ends: 2004 [2021-10-13 19:04:08,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.5ms TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:04:08,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2021-10-13 19:04:08,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 2004. [2021-10-13 19:04:08,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1711 states have (on average 3.946230274693162) internal successors, (6752), 2003 states have internal predecessors, (6752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:08,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 6752 transitions. [2021-10-13 19:04:08,623 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 6752 transitions. Word has length 14 [2021-10-13 19:04:08,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:08,624 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 6752 transitions. [2021-10-13 19:04:08,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 6752 transitions. [2021-10-13 19:04:08,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:04:08,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:08,625 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:08,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:08,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:08,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:08,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1827023614, now seen corresponding path program 3 times [2021-10-13 19:04:08,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:08,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315366186] [2021-10-13 19:04:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:08,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 19:04:08,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:08,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315366186] [2021-10-13 19:04:08,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315366186] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:08,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946940240] [2021-10-13 19:04:08,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:04:08,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:08,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:08,921 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:08,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 19:04:09,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:04:09,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:04:09,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 19:04:09,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 19:04:09,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946940240] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:09,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:09,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-10-13 19:04:09,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469566350] [2021-10-13 19:04:09,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:04:09,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:09,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:04:09,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:04:09,208 INFO L87 Difference]: Start difference. First operand 2004 states and 6752 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:09,261 INFO L93 Difference]: Finished difference Result 2007 states and 6755 transitions. [2021-10-13 19:04:09,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:04:09,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:04:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:09,272 INFO L225 Difference]: With dead ends: 2007 [2021-10-13 19:04:09,272 INFO L226 Difference]: Without dead ends: 2007 [2021-10-13 19:04:09,272 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 53.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:04:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2021-10-13 19:04:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 2007. [2021-10-13 19:04:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1714 states have (on average 3.941073512252042) internal successors, (6755), 2006 states have internal predecessors, (6755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 6755 transitions. [2021-10-13 19:04:09,344 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 6755 transitions. Word has length 17 [2021-10-13 19:04:09,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:09,344 INFO L470 AbstractCegarLoop]: Abstraction has 2007 states and 6755 transitions. [2021-10-13 19:04:09,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 6755 transitions. [2021-10-13 19:04:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:04:09,345 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:09,345 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:09,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:09,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:09,560 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash 390341794, now seen corresponding path program 4 times [2021-10-13 19:04:09,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:09,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137702273] [2021-10-13 19:04:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:09,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:04:09,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:09,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137702273] [2021-10-13 19:04:09,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137702273] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:09,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527259769] [2021-10-13 19:04:09,666 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:04:09,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:09,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:09,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 19:04:09,800 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:04:09,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:04:09,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:04:09,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:04:09,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527259769] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:09,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:09,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-13 19:04:09,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299060303] [2021-10-13 19:04:09,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:04:09,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:09,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:04:09,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:04:09,933 INFO L87 Difference]: Start difference. First operand 2007 states and 6755 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:10,003 INFO L93 Difference]: Finished difference Result 2010 states and 6758 transitions. [2021-10-13 19:04:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:04:10,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:04:10,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:10,015 INFO L225 Difference]: With dead ends: 2010 [2021-10-13 19:04:10,015 INFO L226 Difference]: Without dead ends: 2010 [2021-10-13 19:04:10,016 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 67.4ms TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:04:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2021-10-13 19:04:10,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 2010. [2021-10-13 19:04:10,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1717 states have (on average 3.935934769947583) internal successors, (6758), 2009 states have internal predecessors, (6758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:10,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 6758 transitions. [2021-10-13 19:04:10,087 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 6758 transitions. Word has length 20 [2021-10-13 19:04:10,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:10,087 INFO L470 AbstractCegarLoop]: Abstraction has 2010 states and 6758 transitions. [2021-10-13 19:04:10,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:10,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 6758 transitions. [2021-10-13 19:04:10,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:04:10,089 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:10,089 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:10,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:10,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:10,304 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:10,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:10,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1126256190, now seen corresponding path program 5 times [2021-10-13 19:04:10,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:10,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659579076] [2021-10-13 19:04:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:10,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:04:11,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:11,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659579076] [2021-10-13 19:04:11,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659579076] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:11,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445820183] [2021-10-13 19:04:11,272 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:04:11,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:11,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:11,274 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:11,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 19:04:11,657 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 19:04:11,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:04:11,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 19:04:11,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:11,904 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:04:11,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 147 [2021-10-13 19:04:13,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:04:13,776 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:13,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:14,610 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:14,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:15,962 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:15,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:16,112 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:16,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:16,950 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:04:16,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 84 treesize of output 130 [2021-10-13 19:04:20,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:21,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:23,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:24,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:24,422 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:24,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 116 [2021-10-13 19:04:27,075 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:04:27,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 110 treesize of output 176 [2021-10-13 19:04:27,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:27,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:27,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:27,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:27,476 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:27,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:27,498 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:27,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:27,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:04:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:04:27,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445820183] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:27,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:27,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2021-10-13 19:04:27,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122594335] [2021-10-13 19:04:27,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:04:27,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:27,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:04:27,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:04:27,560 INFO L87 Difference]: Start difference. First operand 2010 states and 6758 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:30,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:30,187 INFO L93 Difference]: Finished difference Result 2759 states and 9295 transitions. [2021-10-13 19:04:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:04:30,187 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-13 19:04:30,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:30,205 INFO L225 Difference]: With dead ends: 2759 [2021-10-13 19:04:30,206 INFO L226 Difference]: Without dead ends: 2759 [2021-10-13 19:04:30,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 2261.5ms TimeCoverageRelationStatistics Valid=345, Invalid=1461, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:04:30,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2021-10-13 19:04:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2193. [2021-10-13 19:04:30,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1900 states have (on average 4.17421052631579) internal successors, (7931), 2192 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 7931 transitions. [2021-10-13 19:04:30,302 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 7931 transitions. Word has length 23 [2021-10-13 19:04:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:30,303 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 7931 transitions. [2021-10-13 19:04:30,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 7931 transitions. [2021-10-13 19:04:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:04:30,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:30,305 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:30,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:30,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-13 19:04:30,520 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:30,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:30,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1126256188, now seen corresponding path program 1 times [2021-10-13 19:04:30,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:30,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688999801] [2021-10-13 19:04:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:30,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 19:04:31,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:31,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688999801] [2021-10-13 19:04:31,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688999801] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:31,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479792046] [2021-10-13 19:04:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:31,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:31,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:31,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:31,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 19:04:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:31,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:04:31,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:31,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:31,852 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:04:31,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:04:32,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:04:33,033 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:33,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:33,563 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:33,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:33,972 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:33,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:34,100 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:34,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:04:34,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:34,730 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:04:34,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:04:36,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:37,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:37,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:38,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:39,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:39,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:40,048 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:04:40,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 84 treesize of output 150 [2021-10-13 19:04:40,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:40,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:40,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:40,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:40,415 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:40,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:04:40,484 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:40,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:04:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:40,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479792046] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:40,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:40,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 27 [2021-10-13 19:04:40,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254167703] [2021-10-13 19:04:40,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:04:40,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:40,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:04:40,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=696, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:04:40,647 INFO L87 Difference]: Start difference. First operand 2193 states and 7931 transitions. Second operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:44,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:44,412 INFO L93 Difference]: Finished difference Result 2576 states and 8669 transitions. [2021-10-13 19:04:44,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 19:04:44,413 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-13 19:04:44,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:44,428 INFO L225 Difference]: With dead ends: 2576 [2021-10-13 19:04:44,428 INFO L226 Difference]: Without dead ends: 2576 [2021-10-13 19:04:44,429 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 3126.2ms TimeCoverageRelationStatistics Valid=491, Invalid=2265, Unknown=0, NotChecked=0, Total=2756 [2021-10-13 19:04:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2021-10-13 19:04:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2193. [2021-10-13 19:04:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1900 states have (on average 4.078421052631579) internal successors, (7749), 2192 states have internal predecessors, (7749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:44,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 7749 transitions. [2021-10-13 19:04:44,514 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 7749 transitions. Word has length 23 [2021-10-13 19:04:44,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:44,515 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 7749 transitions. [2021-10-13 19:04:44,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:44,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 7749 transitions. [2021-10-13 19:04:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:04:44,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:44,516 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:44,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:44,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-13 19:04:44,732 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:44,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:44,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1126256203, now seen corresponding path program 1 times [2021-10-13 19:04:44,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:44,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749179942] [2021-10-13 19:04:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:44,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:45,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:45,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749179942] [2021-10-13 19:04:45,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749179942] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:45,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906173586] [2021-10-13 19:04:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:45,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:45,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:45,079 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:45,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 19:04:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:45,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:04:45,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:45,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:04:45,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:04:45,517 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:45,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:45,576 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:45,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:45,639 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:45,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:45,693 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:45,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:04:45,745 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:04:45,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:04:45,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:45,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:45,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:45,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:45,874 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:45,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:04:45,923 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:45,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:45,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906173586] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:45,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:45,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:04:45,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043199255] [2021-10-13 19:04:45,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:04:45,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:45,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:04:45,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:04:45,968 INFO L87 Difference]: Start difference. First operand 2193 states and 7749 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:46,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:46,550 INFO L93 Difference]: Finished difference Result 2195 states and 7750 transitions. [2021-10-13 19:04:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:04:46,550 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-13 19:04:46,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:46,562 INFO L225 Difference]: With dead ends: 2195 [2021-10-13 19:04:46,563 INFO L226 Difference]: Without dead ends: 2195 [2021-10-13 19:04:46,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 621.5ms TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:04:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2021-10-13 19:04:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2193. [2021-10-13 19:04:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1900 states have (on average 4.077894736842105) internal successors, (7748), 2192 states have internal predecessors, (7748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 7748 transitions. [2021-10-13 19:04:46,641 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 7748 transitions. Word has length 23 [2021-10-13 19:04:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:46,642 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 7748 transitions. [2021-10-13 19:04:46,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 7748 transitions. [2021-10-13 19:04:46,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:04:46,643 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:46,643 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:46,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:46,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:46,857 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:46,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:46,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1126256258, now seen corresponding path program 1 times [2021-10-13 19:04:46,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:46,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317005509] [2021-10-13 19:04:46,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:46,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:47,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:47,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317005509] [2021-10-13 19:04:47,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317005509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:47,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993976693] [2021-10-13 19:04:47,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:47,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:47,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:47,254 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:47,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 19:04:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:47,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:04:47,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:47,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:04:47,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:04:47,703 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:47,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:47,756 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:47,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:47,810 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:47,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:47,869 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:47,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:47,911 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:04:47,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:04:47,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:47,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:47,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:48,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:48,037 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:48,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:04:48,086 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:48,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:04:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:48,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993976693] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:48,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:48,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:04:48,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658058137] [2021-10-13 19:04:48,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:04:48,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:48,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:04:48,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:04:48,137 INFO L87 Difference]: Start difference. First operand 2193 states and 7748 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:48,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:48,759 INFO L93 Difference]: Finished difference Result 2194 states and 7748 transitions. [2021-10-13 19:04:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:04:48,760 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-13 19:04:48,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:48,772 INFO L225 Difference]: With dead ends: 2194 [2021-10-13 19:04:48,772 INFO L226 Difference]: Without dead ends: 2194 [2021-10-13 19:04:48,773 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 558.7ms TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:04:48,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2021-10-13 19:04:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2193. [2021-10-13 19:04:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1900 states have (on average 4.077368421052632) internal successors, (7747), 2192 states have internal predecessors, (7747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 7747 transitions. [2021-10-13 19:04:48,849 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 7747 transitions. Word has length 23 [2021-10-13 19:04:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:48,850 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 7747 transitions. [2021-10-13 19:04:48,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 7747 transitions. [2021-10-13 19:04:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 19:04:48,851 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:48,851 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:48,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:49,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 19:04:49,065 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:49,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:49,066 INFO L82 PathProgramCache]: Analyzing trace with hash -554206455, now seen corresponding path program 1 times [2021-10-13 19:04:49,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:49,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982145052] [2021-10-13 19:04:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:49,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:49,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:49,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982145052] [2021-10-13 19:04:49,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982145052] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:49,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028120721] [2021-10-13 19:04:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:49,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:49,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:49,553 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:49,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 19:04:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:49,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:04:49,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:49,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:04:49,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:04:50,015 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:50,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:50,074 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:50,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:50,147 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:50,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:04:50,217 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:50,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:04:50,282 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:04:50,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:04:50,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:50,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:50,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:50,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:04:50,458 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:50,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:04:50,506 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:50,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:50,621 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:50,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:50,640 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:50,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028120721] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:50,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:50,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-10-13 19:04:50,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872726471] [2021-10-13 19:04:50,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:04:50,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:50,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:04:50,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:04:50,643 INFO L87 Difference]: Start difference. First operand 2193 states and 7747 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:51,413 INFO L93 Difference]: Finished difference Result 2260 states and 7929 transitions. [2021-10-13 19:04:51,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:04:51,414 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 19:04:51,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:51,427 INFO L225 Difference]: With dead ends: 2260 [2021-10-13 19:04:51,427 INFO L226 Difference]: Without dead ends: 2260 [2021-10-13 19:04:51,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 793.4ms TimeCoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:04:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2021-10-13 19:04:51,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2215. [2021-10-13 19:04:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1922 states have (on average 4.081165452653486) internal successors, (7844), 2214 states have internal predecessors, (7844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 7844 transitions. [2021-10-13 19:04:51,499 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 7844 transitions. Word has length 24 [2021-10-13 19:04:51,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:51,500 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 7844 transitions. [2021-10-13 19:04:51,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 7844 transitions. [2021-10-13 19:04:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 19:04:51,501 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:51,501 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:51,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:51,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:51,715 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:51,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:51,716 INFO L82 PathProgramCache]: Analyzing trace with hash -554206510, now seen corresponding path program 1 times [2021-10-13 19:04:51,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:51,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55605834] [2021-10-13 19:04:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:51,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:52,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:52,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55605834] [2021-10-13 19:04:52,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55605834] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:52,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736591949] [2021-10-13 19:04:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:52,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:52,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:52,153 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:52,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 19:04:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:52,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:04:52,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:52,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:04:52,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:04:52,717 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:52,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:52,769 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:52,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:52,840 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:52,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:52,916 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:52,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:52,981 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:04:52,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:04:53,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:53,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:53,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:53,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:04:53,130 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:04:53,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:04:53,186 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:53,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:04:53,290 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:53,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:04:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:04:53,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736591949] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:53,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:04:53,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-10-13 19:04:53,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071271196] [2021-10-13 19:04:53,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:04:53,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:04:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:04:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:04:53,315 INFO L87 Difference]: Start difference. First operand 2215 states and 7844 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:04:54,073 INFO L93 Difference]: Finished difference Result 2249 states and 7886 transitions. [2021-10-13 19:04:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:04:54,073 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 19:04:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:04:54,084 INFO L225 Difference]: With dead ends: 2249 [2021-10-13 19:04:54,084 INFO L226 Difference]: Without dead ends: 2249 [2021-10-13 19:04:54,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 738.1ms TimeCoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:04:54,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2021-10-13 19:04:54,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2215. [2021-10-13 19:04:54,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1922 states have (on average 4.069719042663892) internal successors, (7822), 2214 states have internal predecessors, (7822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 7822 transitions. [2021-10-13 19:04:54,158 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 7822 transitions. Word has length 24 [2021-10-13 19:04:54,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:04:54,159 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 7822 transitions. [2021-10-13 19:04:54,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:04:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 7822 transitions. [2021-10-13 19:04:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 19:04:54,159 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:04:54,160 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:04:54,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 19:04:54,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 19:04:54,373 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:04:54,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:04:54,375 INFO L82 PathProgramCache]: Analyzing trace with hash -553997192, now seen corresponding path program 1 times [2021-10-13 19:04:54,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:04:54,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664197945] [2021-10-13 19:04:54,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:54,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:04:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:04:54,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:04:54,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664197945] [2021-10-13 19:04:54,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664197945] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:04:54,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891658967] [2021-10-13 19:04:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:04:54,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:04:54,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:04:54,997 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:04:54,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 19:04:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:04:55,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 19:04:55,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:04:55,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:55,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:55,557 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:04:55,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:04:55,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:04:56,632 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:56,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:56,750 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:56,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:57,580 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:57,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:04:57,954 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:04:57,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:04:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:04:58,202 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-13 19:04:58,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:05:00,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:00,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:01,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:02,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:02,298 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:02,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-10-13 19:05:04,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:04,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:04,217 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-13 19:05:04,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:05:04,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:04,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:04,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:04,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:04,592 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:04,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:05:04,645 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:04,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:05:04,751 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:04,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:05:04,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:05:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:05:04,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891658967] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:04,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:05:04,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-13 19:05:04,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157468308] [2021-10-13 19:05:04,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:05:04,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:05:04,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:05:04,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:05:04,806 INFO L87 Difference]: Start difference. First operand 2215 states and 7822 transitions. Second operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:05:06,290 INFO L93 Difference]: Finished difference Result 2918 states and 10214 transitions. [2021-10-13 19:05:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:05:06,290 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 19:05:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:05:06,309 INFO L225 Difference]: With dead ends: 2918 [2021-10-13 19:05:06,309 INFO L226 Difference]: Without dead ends: 2918 [2021-10-13 19:05:06,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 1293.0ms TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:05:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-10-13 19:05:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2385. [2021-10-13 19:05:06,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2092 states have (on average 4.259560229445507) internal successors, (8911), 2384 states have internal predecessors, (8911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:06,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 8911 transitions. [2021-10-13 19:05:06,407 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 8911 transitions. Word has length 24 [2021-10-13 19:05:06,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:05:06,408 INFO L470 AbstractCegarLoop]: Abstraction has 2385 states and 8911 transitions. [2021-10-13 19:05:06,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:06,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 8911 transitions. [2021-10-13 19:05:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 19:05:06,414 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:05:06,414 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:05:06,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-13 19:05:06,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 19:05:06,628 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:05:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:05:06,629 INFO L82 PathProgramCache]: Analyzing trace with hash -553997190, now seen corresponding path program 1 times [2021-10-13 19:05:06,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:05:06,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868383465] [2021-10-13 19:05:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:06,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:05:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:05:07,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:05:07,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868383465] [2021-10-13 19:05:07,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868383465] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:07,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045516398] [2021-10-13 19:05:07,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:07,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:07,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:05:07,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:05:07,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 19:05:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:08,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:05:08,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:05:08,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:08,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:08,314 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:05:08,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:05:08,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:05:09,199 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:09,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:10,096 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:10,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:10,528 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:10,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:10,941 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:10,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:05:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:11,191 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-13 19:05:11,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:05:13,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:13,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:14,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:14,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:15,298 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:15,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 95 [2021-10-13 19:05:17,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:17,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:17,513 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-13 19:05:17,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:05:17,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:17,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:17,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:17,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:17,915 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:17,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:05:17,984 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:17,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:05:18,104 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:18,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:05:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:05:18,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045516398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:18,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:05:18,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2021-10-13 19:05:18,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935838814] [2021-10-13 19:05:18,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:05:18,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:05:18,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:05:18,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:05:18,176 INFO L87 Difference]: Start difference. First operand 2385 states and 8911 transitions. Second operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:05:21,591 INFO L93 Difference]: Finished difference Result 2907 states and 10071 transitions. [2021-10-13 19:05:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:05:21,591 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 19:05:21,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:05:21,604 INFO L225 Difference]: With dead ends: 2907 [2021-10-13 19:05:21,604 INFO L226 Difference]: Without dead ends: 2907 [2021-10-13 19:05:21,606 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 2715.6ms TimeCoverageRelationStatistics Valid=415, Invalid=1747, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 19:05:21,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-10-13 19:05:21,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2204. [2021-10-13 19:05:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1911 states have (on average 4.064887493458922) internal successors, (7768), 2203 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:21,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 7768 transitions. [2021-10-13 19:05:21,731 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 7768 transitions. Word has length 24 [2021-10-13 19:05:21,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:05:21,731 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 7768 transitions. [2021-10-13 19:05:21,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:21,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 7768 transitions. [2021-10-13 19:05:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:05:21,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:05:21,732 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:05:21,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-13 19:05:21,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-13 19:05:21,947 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:05:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:05:21,950 INFO L82 PathProgramCache]: Analyzing trace with hash -393380, now seen corresponding path program 1 times [2021-10-13 19:05:21,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:05:21,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648496350] [2021-10-13 19:05:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:21,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:05:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:05:22,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:05:22,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648496350] [2021-10-13 19:05:22,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648496350] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:22,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601193608] [2021-10-13 19:05:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:22,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:22,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:05:22,536 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:05:22,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 19:05:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:23,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 19:05:23,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:05:23,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:23,273 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:05:23,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:05:24,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:05:24,914 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:24,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:25,012 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:25,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:25,944 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:25,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:05:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:26,175 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:05:26,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:05:27,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:29,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:29,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:30,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:30,806 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:05:30,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 100 [2021-10-13 19:05:33,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:33,194 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:05:33,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:05:33,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:33,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:33,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:33,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:33,541 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:05:33,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:33,594 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:33,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:05:33,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:05:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:05:33,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601193608] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:33,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:05:33,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-13 19:05:33,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315756039] [2021-10-13 19:05:33,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:05:33,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:05:33,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:05:33,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:05:33,679 INFO L87 Difference]: Start difference. First operand 2204 states and 7768 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:05:37,116 INFO L93 Difference]: Finished difference Result 2776 states and 10233 transitions. [2021-10-13 19:05:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:05:37,117 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:05:37,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:05:37,126 INFO L225 Difference]: With dead ends: 2776 [2021-10-13 19:05:37,126 INFO L226 Difference]: Without dead ends: 2776 [2021-10-13 19:05:37,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1886.5ms TimeCoverageRelationStatistics Valid=359, Invalid=1533, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:05:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2021-10-13 19:05:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2387. [2021-10-13 19:05:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2094 states have (on average 4.4426934097421205) internal successors, (9303), 2386 states have internal predecessors, (9303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 9303 transitions. [2021-10-13 19:05:37,209 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 9303 transitions. Word has length 25 [2021-10-13 19:05:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:05:37,209 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 9303 transitions. [2021-10-13 19:05:37,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 9303 transitions. [2021-10-13 19:05:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:05:37,210 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:05:37,210 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:05:37,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-13 19:05:37,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 19:05:37,425 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:05:37,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:05:37,426 INFO L82 PathProgramCache]: Analyzing trace with hash -393378, now seen corresponding path program 1 times [2021-10-13 19:05:37,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:05:37,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954332326] [2021-10-13 19:05:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:37,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:05:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 19:05:38,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:05:38,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954332326] [2021-10-13 19:05:38,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954332326] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:38,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754853183] [2021-10-13 19:05:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:38,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:38,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:05:38,179 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:05:38,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 19:05:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:38,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:05:38,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:05:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:39,037 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:05:39,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:05:39,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:05:40,725 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:40,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:05:41,248 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:41,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:05:41,831 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:41,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:05:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:42,079 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:05:42,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:05:44,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:44,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:46,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:46,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:47,052 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:47,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 100 [2021-10-13 19:05:48,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:05:48,876 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:05:48,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:05:49,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:49,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:49,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:49,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:49,287 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:49,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:49,356 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:49,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:05:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:05:49,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754853183] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:49,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:05:49,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 28 [2021-10-13 19:05:49,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170294584] [2021-10-13 19:05:49,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:05:49,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:05:49,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:05:49,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:05:49,491 INFO L87 Difference]: Start difference. First operand 2387 states and 9303 transitions. Second operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:53,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:05:53,989 INFO L93 Difference]: Finished difference Result 2774 states and 10048 transitions. [2021-10-13 19:05:53,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:05:53,989 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:05:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:05:53,997 INFO L225 Difference]: With dead ends: 2774 [2021-10-13 19:05:53,997 INFO L226 Difference]: Without dead ends: 2774 [2021-10-13 19:05:53,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 2811.8ms TimeCoverageRelationStatistics Valid=415, Invalid=2135, Unknown=0, NotChecked=0, Total=2550 [2021-10-13 19:05:54,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2021-10-13 19:05:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2387. [2021-10-13 19:05:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2094 states have (on average 4.35577841451767) internal successors, (9121), 2386 states have internal predecessors, (9121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 9121 transitions. [2021-10-13 19:05:54,072 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 9121 transitions. Word has length 25 [2021-10-13 19:05:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:05:54,073 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 9121 transitions. [2021-10-13 19:05:54,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:54,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 9121 transitions. [2021-10-13 19:05:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:05:54,073 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:05:54,073 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:05:54,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 19:05:54,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:54,287 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:05:54,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:05:54,289 INFO L82 PathProgramCache]: Analyzing trace with hash -393393, now seen corresponding path program 1 times [2021-10-13 19:05:54,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:05:54,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504436338] [2021-10-13 19:05:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:54,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:05:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:05:54,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:05:54,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504436338] [2021-10-13 19:05:54,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504436338] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:54,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212709922] [2021-10-13 19:05:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:54,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:54,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:05:54,666 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:05:54,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 19:05:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:55,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:05:55,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:05:55,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:05:55,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:05:55,548 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:55,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:05:55,603 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:55,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:05:55,658 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:55,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:05:55,710 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:05:55,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:05:55,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:55,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:55,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:55,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:05:55,844 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:55,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:05:55,885 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:55,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:05:55,949 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:05:55,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212709922] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:55,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:05:55,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-13 19:05:55,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14555507] [2021-10-13 19:05:55,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:05:55,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:05:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:05:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:05:55,951 INFO L87 Difference]: Start difference. First operand 2387 states and 9121 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:56,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:05:56,654 INFO L93 Difference]: Finished difference Result 2390 states and 9123 transitions. [2021-10-13 19:05:56,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:05:56,655 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:05:56,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:05:56,661 INFO L225 Difference]: With dead ends: 2390 [2021-10-13 19:05:56,661 INFO L226 Difference]: Without dead ends: 2390 [2021-10-13 19:05:56,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 642.2ms TimeCoverageRelationStatistics Valid=269, Invalid=991, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:05:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2021-10-13 19:05:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2387. [2021-10-13 19:05:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2094 states have (on average 4.355300859598854) internal successors, (9120), 2386 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 9120 transitions. [2021-10-13 19:05:56,770 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 9120 transitions. Word has length 25 [2021-10-13 19:05:56,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:05:56,770 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 9120 transitions. [2021-10-13 19:05:56,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:56,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 9120 transitions. [2021-10-13 19:05:56,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:05:56,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:05:56,771 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:05:56,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 19:05:56,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:56,987 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:05:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:05:56,988 INFO L82 PathProgramCache]: Analyzing trace with hash -393448, now seen corresponding path program 1 times [2021-10-13 19:05:56,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:05:56,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942833324] [2021-10-13 19:05:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:56,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:05:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:05:57,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:05:57,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942833324] [2021-10-13 19:05:57,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942833324] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:57,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685048489] [2021-10-13 19:05:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:57,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:57,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:05:57,355 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:05:57,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-13 19:05:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:05:58,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:05:58,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:05:58,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:05:58,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:05:58,213 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:58,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:58,271 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:58,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:05:58,331 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:05:58,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:05:58,382 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:05:58,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:05:58,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:58,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:58,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:58,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:05:58,514 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:05:58,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:05:58,559 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:05:58,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:05:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:05:58,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685048489] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:05:58,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:05:58,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-13 19:05:58,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585731570] [2021-10-13 19:05:58,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:05:58,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:05:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:05:58,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:05:58,627 INFO L87 Difference]: Start difference. First operand 2387 states and 9120 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:59,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:05:59,373 INFO L93 Difference]: Finished difference Result 2389 states and 9121 transitions. [2021-10-13 19:05:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:05:59,373 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:05:59,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:05:59,380 INFO L225 Difference]: With dead ends: 2389 [2021-10-13 19:05:59,380 INFO L226 Difference]: Without dead ends: 2389 [2021-10-13 19:05:59,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 654.5ms TimeCoverageRelationStatistics Valid=269, Invalid=991, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:05:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-10-13 19:05:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2387. [2021-10-13 19:05:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2094 states have (on average 4.354823304680038) internal successors, (9119), 2386 states have internal predecessors, (9119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 9119 transitions. [2021-10-13 19:05:59,434 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 9119 transitions. Word has length 25 [2021-10-13 19:05:59,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:05:59,434 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 9119 transitions. [2021-10-13 19:05:59,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:05:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 9119 transitions. [2021-10-13 19:05:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:05:59,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:05:59,435 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:05:59,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-13 19:05:59,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:05:59,640 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:05:59,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:05:59,641 INFO L82 PathProgramCache]: Analyzing trace with hash -70379093, now seen corresponding path program 1 times [2021-10-13 19:05:59,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:05:59,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058038459] [2021-10-13 19:05:59,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:05:59,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:05:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:06:00,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:00,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058038459] [2021-10-13 19:06:00,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058038459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:00,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296208394] [2021-10-13 19:06:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:00,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:00,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:00,460 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:00,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-13 19:06:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:01,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:06:01,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:01,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:06:01,462 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:01,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:06:01,533 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:01,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:06:01,593 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:01,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:06:01,658 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:01,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:01,721 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:01,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:06:01,788 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:01,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:06:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:06:01,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296208394] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:01,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:01,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 28 [2021-10-13 19:06:01,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244067388] [2021-10-13 19:06:01,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:06:01,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:01,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:06:01,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:06:01,843 INFO L87 Difference]: Start difference. First operand 2387 states and 9119 transitions. Second operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:02,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:02,893 INFO L93 Difference]: Finished difference Result 2465 states and 9383 transitions. [2021-10-13 19:06:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:06:02,894 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:06:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:02,905 INFO L225 Difference]: With dead ends: 2465 [2021-10-13 19:06:02,905 INFO L226 Difference]: Without dead ends: 2465 [2021-10-13 19:06:02,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1087.4ms TimeCoverageRelationStatistics Valid=300, Invalid=1106, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:06:02,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2021-10-13 19:06:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2413. [2021-10-13 19:06:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2120 states have (on average 4.367452830188679) internal successors, (9259), 2412 states have internal predecessors, (9259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 9259 transitions. [2021-10-13 19:06:02,983 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 9259 transitions. Word has length 25 [2021-10-13 19:06:02,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:02,983 INFO L470 AbstractCegarLoop]: Abstraction has 2413 states and 9259 transitions. [2021-10-13 19:06:02,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:02,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 9259 transitions. [2021-10-13 19:06:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:06:02,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:02,984 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:03,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-10-13 19:06:03,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-13 19:06:03,198 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:03,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:03,199 INFO L82 PathProgramCache]: Analyzing trace with hash -70379007, now seen corresponding path program 1 times [2021-10-13 19:06:03,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:03,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137295933] [2021-10-13 19:06:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:03,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:03,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:03,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137295933] [2021-10-13 19:06:03,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137295933] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:03,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176830240] [2021-10-13 19:06:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:03,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:03,612 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:03,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-13 19:06:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:04,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:06:04,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:04,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:06:04,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:06:04,603 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:04,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:06:04,703 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:04,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:06:04,773 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:04,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:06:04,839 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:04,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:04,894 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:06:04,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:06:04,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:04,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:04,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:04,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:05,027 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:06:05,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:05,080 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:05,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:06:05,135 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:05,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:06:05,222 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:05,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176830240] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:05,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:05,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-10-13 19:06:05,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672551500] [2021-10-13 19:06:05,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:06:05,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:05,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:06:05,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:06:05,225 INFO L87 Difference]: Start difference. First operand 2413 states and 9259 transitions. Second operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:06,363 INFO L93 Difference]: Finished difference Result 3332 states and 12771 transitions. [2021-10-13 19:06:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:06:06,364 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:06:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:06,374 INFO L225 Difference]: With dead ends: 3332 [2021-10-13 19:06:06,374 INFO L226 Difference]: Without dead ends: 3332 [2021-10-13 19:06:06,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 981.0ms TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:06:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2021-10-13 19:06:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2633. [2021-10-13 19:06:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2340 states have (on average 4.6) internal successors, (10764), 2632 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 10764 transitions. [2021-10-13 19:06:06,469 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 10764 transitions. Word has length 25 [2021-10-13 19:06:06,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:06,469 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 10764 transitions. [2021-10-13 19:06:06,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 10764 transitions. [2021-10-13 19:06:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:06:06,470 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:06,470 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:06,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:06,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:06,684 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:06,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:06,685 INFO L82 PathProgramCache]: Analyzing trace with hash -70379005, now seen corresponding path program 1 times [2021-10-13 19:06:06,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:06,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013823476] [2021-10-13 19:06:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:06,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:07,724 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:06:07,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:07,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013823476] [2021-10-13 19:06:07,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013823476] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:07,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112652111] [2021-10-13 19:06:07,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:07,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:07,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:07,731 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:07,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-13 19:06:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:08,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:06:08,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:08,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:06:08,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:06:08,837 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:08,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:08,926 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:08,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:09,012 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:09,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:09,102 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:09,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:06:09,180 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:06:09,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:06:09,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:09,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:09,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:09,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:09,333 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:06:09,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:06:09,406 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:09,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:09,476 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:09,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:09,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:06:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:09,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112652111] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:09,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:09,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13] total 33 [2021-10-13 19:06:09,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968871239] [2021-10-13 19:06:09,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-13 19:06:09,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-13 19:06:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:06:09,597 INFO L87 Difference]: Start difference. First operand 2633 states and 10764 transitions. Second operand has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:12,419 INFO L93 Difference]: Finished difference Result 3099 states and 11869 transitions. [2021-10-13 19:06:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 19:06:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:06:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:12,430 INFO L225 Difference]: With dead ends: 3099 [2021-10-13 19:06:12,430 INFO L226 Difference]: Without dead ends: 3099 [2021-10-13 19:06:12,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 2729.1ms TimeCoverageRelationStatistics Valid=497, Invalid=2695, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 19:06:12,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2021-10-13 19:06:12,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 2633. [2021-10-13 19:06:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2340 states have (on average 4.50042735042735) internal successors, (10531), 2632 states have internal predecessors, (10531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 10531 transitions. [2021-10-13 19:06:12,548 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 10531 transitions. Word has length 25 [2021-10-13 19:06:12,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:12,548 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 10531 transitions. [2021-10-13 19:06:12,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:12,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 10531 transitions. [2021-10-13 19:06:12,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:06:12,549 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:12,549 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:12,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:12,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-13 19:06:12,763 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:12,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:12,764 INFO L82 PathProgramCache]: Analyzing trace with hash -70379003, now seen corresponding path program 1 times [2021-10-13 19:06:12,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:12,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552266015] [2021-10-13 19:06:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:12,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:13,045 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:06:13,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:13,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552266015] [2021-10-13 19:06:13,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552266015] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:13,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687874892] [2021-10-13 19:06:13,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:13,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:13,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:13,046 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:13,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-13 19:06:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:13,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:06:13,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:13,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:06:14,037 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:14,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:14,094 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:14,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:14,157 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:14,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:14,219 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:14,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:06:14,273 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:14,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:14,324 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:14,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:06:14,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687874892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:14,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:14,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-13 19:06:14,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984195238] [2021-10-13 19:06:14,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:06:14,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:06:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:06:14,363 INFO L87 Difference]: Start difference. First operand 2633 states and 10531 transitions. Second operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:14,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:14,949 INFO L93 Difference]: Finished difference Result 2646 states and 10549 transitions. [2021-10-13 19:06:14,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:06:14,949 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:06:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:14,960 INFO L225 Difference]: With dead ends: 2646 [2021-10-13 19:06:14,960 INFO L226 Difference]: Without dead ends: 2646 [2021-10-13 19:06:14,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 471.5ms TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:06:14,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2021-10-13 19:06:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2633. [2021-10-13 19:06:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2340 states have (on average 4.494871794871795) internal successors, (10518), 2632 states have internal predecessors, (10518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 10518 transitions. [2021-10-13 19:06:15,037 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 10518 transitions. Word has length 25 [2021-10-13 19:06:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:15,037 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 10518 transitions. [2021-10-13 19:06:15,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 10518 transitions. [2021-10-13 19:06:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:06:15,039 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:15,039 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:15,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:15,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-13 19:06:15,254 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:15,254 INFO L82 PathProgramCache]: Analyzing trace with hash -12197699, now seen corresponding path program 1 times [2021-10-13 19:06:15,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:15,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280485292] [2021-10-13 19:06:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:15,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-13 19:06:15,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:15,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280485292] [2021-10-13 19:06:15,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280485292] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:15,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676880128] [2021-10-13 19:06:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:15,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:15,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:15,329 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:15,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-13 19:06:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:16,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:06:16,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-13 19:06:16,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676880128] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:06:16,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:06:16,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-13 19:06:16,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690803391] [2021-10-13 19:06:16,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:06:16,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:06:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:06:16,335 INFO L87 Difference]: Start difference. First operand 2633 states and 10518 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:16,400 INFO L93 Difference]: Finished difference Result 3941 states and 15164 transitions. [2021-10-13 19:06:16,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:06:16,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:06:16,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:16,415 INFO L225 Difference]: With dead ends: 3941 [2021-10-13 19:06:16,415 INFO L226 Difference]: Without dead ends: 3941 [2021-10-13 19:06:16,416 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:06:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2021-10-13 19:06:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 2432. [2021-10-13 19:06:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2181 states have (on average 4.398899587345254) internal successors, (9594), 2431 states have internal predecessors, (9594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 9594 transitions. [2021-10-13 19:06:16,512 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 9594 transitions. Word has length 26 [2021-10-13 19:06:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:16,513 INFO L470 AbstractCegarLoop]: Abstraction has 2432 states and 9594 transitions. [2021-10-13 19:06:16,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:16,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 9594 transitions. [2021-10-13 19:06:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:06:16,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:16,514 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:16,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:16,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-13 19:06:16,729 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:16,730 INFO L82 PathProgramCache]: Analyzing trace with hash -12197713, now seen corresponding path program 1 times [2021-10-13 19:06:16,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:16,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122165360] [2021-10-13 19:06:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:16,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:06:17,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:17,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122165360] [2021-10-13 19:06:17,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122165360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:17,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523235448] [2021-10-13 19:06:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:17,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:17,479 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:17,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-13 19:06:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:18,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:06:18,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:18,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:06:18,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:06:18,665 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:18,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:06:18,730 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:18,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:06:18,803 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:18,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:06:18,911 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:06:18,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:06:18,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:18,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:19,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:19,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:19,069 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:06:19,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:06:19,135 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:19,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:19,330 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:19,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:19,367 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:19,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523235448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:19,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:19,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-13 19:06:19,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493949006] [2021-10-13 19:06:19,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:06:19,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:06:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:06:19,371 INFO L87 Difference]: Start difference. First operand 2432 states and 9594 transitions. Second operand has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:21,323 INFO L93 Difference]: Finished difference Result 2525 states and 9830 transitions. [2021-10-13 19:06:21,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:06:21,324 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:06:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:21,333 INFO L225 Difference]: With dead ends: 2525 [2021-10-13 19:06:21,333 INFO L226 Difference]: Without dead ends: 2525 [2021-10-13 19:06:21,334 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1927.4ms TimeCoverageRelationStatistics Valid=408, Invalid=1944, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 19:06:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2021-10-13 19:06:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2458. [2021-10-13 19:06:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2207 states have (on average 4.394200271862257) internal successors, (9698), 2457 states have internal predecessors, (9698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 9698 transitions. [2021-10-13 19:06:21,394 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 9698 transitions. Word has length 26 [2021-10-13 19:06:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:21,395 INFO L470 AbstractCegarLoop]: Abstraction has 2458 states and 9698 transitions. [2021-10-13 19:06:21,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 9698 transitions. [2021-10-13 19:06:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:06:21,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:21,395 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:21,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:21,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-13 19:06:21,596 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:21,597 INFO L82 PathProgramCache]: Analyzing trace with hash -12197768, now seen corresponding path program 1 times [2021-10-13 19:06:21,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:21,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110498276] [2021-10-13 19:06:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:21,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:06:22,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:22,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110498276] [2021-10-13 19:06:22,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110498276] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:22,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403183954] [2021-10-13 19:06:22,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:22,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:22,461 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:22,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 19:06:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:23,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:06:23,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:23,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:06:23,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:06:23,698 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:23,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:23,771 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:23,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:23,849 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:23,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:06:23,913 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:06:23,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:06:23,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:23,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:24,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:24,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:06:24,076 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:06:24,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:24,143 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:24,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:06:24,343 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:24,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:06:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:24,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403183954] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:24,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:24,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-13 19:06:24,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130612363] [2021-10-13 19:06:24,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:06:24,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:24,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:06:24,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:06:24,382 INFO L87 Difference]: Start difference. First operand 2458 states and 9698 transitions. Second operand has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:26,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:26,431 INFO L93 Difference]: Finished difference Result 2512 states and 9778 transitions. [2021-10-13 19:06:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:06:26,432 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:06:26,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:26,442 INFO L225 Difference]: With dead ends: 2512 [2021-10-13 19:06:26,442 INFO L226 Difference]: Without dead ends: 2512 [2021-10-13 19:06:26,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1913.3ms TimeCoverageRelationStatistics Valid=408, Invalid=1944, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 19:06:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2021-10-13 19:06:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2458. [2021-10-13 19:06:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2207 states have (on average 4.382419574082465) internal successors, (9672), 2457 states have internal predecessors, (9672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 9672 transitions. [2021-10-13 19:06:26,513 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 9672 transitions. Word has length 26 [2021-10-13 19:06:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:26,514 INFO L470 AbstractCegarLoop]: Abstraction has 2458 states and 9672 transitions. [2021-10-13 19:06:26,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 9672 transitions. [2021-10-13 19:06:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:06:26,515 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:26,515 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:26,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:26,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-13 19:06:26,728 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:26,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:26,729 INFO L82 PathProgramCache]: Analyzing trace with hash -11988450, now seen corresponding path program 1 times [2021-10-13 19:06:26,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:26,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406213323] [2021-10-13 19:06:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:26,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 19:06:27,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:27,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406213323] [2021-10-13 19:06:27,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406213323] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:27,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542695995] [2021-10-13 19:06:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:27,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:27,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:27,800 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:27,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 19:06:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:28,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 19:06:28,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:28,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:28,979 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:06:28,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:06:30,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:06:30,205 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:30,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:30,676 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:30,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:31,207 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:31,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:06:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:31,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:31,894 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-13 19:06:31,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:06:33,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:34,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:35,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:36,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:36,170 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:06:36,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 95 [2021-10-13 19:06:38,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:38,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:38,304 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-13 19:06:38,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:06:38,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:38,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:38,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:38,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:06:38,715 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:06:38,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:06:38,785 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:38,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:38,976 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:38,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:06:39,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:06:39,025 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:06:39,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542695995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:39,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:39,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 31 [2021-10-13 19:06:39,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584527884] [2021-10-13 19:06:39,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:06:39,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:39,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:06:39,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=913, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:06:39,027 INFO L87 Difference]: Start difference. First operand 2458 states and 9672 transitions. Second operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:42,689 INFO L93 Difference]: Finished difference Result 3299 states and 12860 transitions. [2021-10-13 19:06:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:06:42,689 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:06:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:42,699 INFO L225 Difference]: With dead ends: 3299 [2021-10-13 19:06:42,699 INFO L226 Difference]: Without dead ends: 3299 [2021-10-13 19:06:42,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3185.8ms TimeCoverageRelationStatistics Valid=449, Invalid=2203, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 19:06:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2021-10-13 19:06:42,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2645. [2021-10-13 19:06:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2394 states have (on average 4.632414369256474) internal successors, (11090), 2644 states have internal predecessors, (11090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 11090 transitions. [2021-10-13 19:06:42,763 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 11090 transitions. Word has length 26 [2021-10-13 19:06:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:42,763 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 11090 transitions. [2021-10-13 19:06:42,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 11090 transitions. [2021-10-13 19:06:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:06:42,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:42,764 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:42,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:42,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-13 19:06:42,971 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:42,971 INFO L82 PathProgramCache]: Analyzing trace with hash -11988448, now seen corresponding path program 1 times [2021-10-13 19:06:42,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:42,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443270926] [2021-10-13 19:06:42,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:42,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:43,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:43,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443270926] [2021-10-13 19:06:43,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443270926] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:43,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595524873] [2021-10-13 19:06:43,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:43,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:43,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:43,606 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:43,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-13 19:06:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:44,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 19:06:44,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:44,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:44,850 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:06:44,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:06:45,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:06:46,297 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:46,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:06:46,851 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:46,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:06:47,202 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:47,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:06:47,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:47,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:47,439 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-13 19:06:47,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:06:49,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:49,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:50,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:50,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:51,112 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:06:51,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-10-13 19:06:52,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:06:53,051 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-13 19:06:53,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:06:53,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:53,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:53,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:53,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:06:53,454 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:06:53,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:06:53,519 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:53,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:06:53,707 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:06:53,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:06:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:06:53,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595524873] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:53,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:06:53,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2021-10-13 19:06:53,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027647601] [2021-10-13 19:06:53,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:06:53,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:06:53,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:06:53,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:06:53,800 INFO L87 Difference]: Start difference. First operand 2645 states and 11090 transitions. Second operand has 31 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:06:57,562 INFO L93 Difference]: Finished difference Result 3273 states and 12595 transitions. [2021-10-13 19:06:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 19:06:57,563 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:06:57,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:06:57,577 INFO L225 Difference]: With dead ends: 3273 [2021-10-13 19:06:57,577 INFO L226 Difference]: Without dead ends: 3273 [2021-10-13 19:06:57,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 2904.5ms TimeCoverageRelationStatistics Valid=434, Invalid=2016, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 19:06:57,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2021-10-13 19:06:57,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2445. [2021-10-13 19:06:57,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2194 states have (on average 4.378760255241568) internal successors, (9607), 2444 states have internal predecessors, (9607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 9607 transitions. [2021-10-13 19:06:57,659 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 9607 transitions. Word has length 26 [2021-10-13 19:06:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:06:57,659 INFO L470 AbstractCegarLoop]: Abstraction has 2445 states and 9607 transitions. [2021-10-13 19:06:57,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:06:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 9607 transitions. [2021-10-13 19:06:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:06:57,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:06:57,673 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:06:57,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-13 19:06:57,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:57,888 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:06:57,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:06:57,889 INFO L82 PathProgramCache]: Analyzing trace with hash -16896848, now seen corresponding path program 1 times [2021-10-13 19:06:57,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:06:57,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507788666] [2021-10-13 19:06:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:57,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:06:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:06:58,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:06:58,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507788666] [2021-10-13 19:06:58,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507788666] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:06:58,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389153881] [2021-10-13 19:06:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:06:58,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:06:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:06:58,432 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:06:58,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 19:06:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:06:59,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:06:59,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:06:59,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:06:59,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:06:59,787 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:59,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:59,861 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:59,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:06:59,943 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:06:59,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:00,016 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:00,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:07:00,094 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:07:00,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:07:00,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:00,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:00,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:00,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:00,268 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:00,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:07:00,322 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:00,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:00,479 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:00,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:00,598 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:00,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:07:00,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389153881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:00,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:00,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-10-13 19:07:00,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823355467] [2021-10-13 19:07:00,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:07:00,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:07:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:07:00,622 INFO L87 Difference]: Start difference. First operand 2445 states and 9607 transitions. Second operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:01,558 INFO L93 Difference]: Finished difference Result 3767 states and 14120 transitions. [2021-10-13 19:07:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:07:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:01,576 INFO L225 Difference]: With dead ends: 3767 [2021-10-13 19:07:01,576 INFO L226 Difference]: Without dead ends: 3767 [2021-10-13 19:07:01,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1079.6ms TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:07:01,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3767 states. [2021-10-13 19:07:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3767 to 2819. [2021-10-13 19:07:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2568 states have (on average 4.490654205607477) internal successors, (11532), 2818 states have internal predecessors, (11532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 11532 transitions. [2021-10-13 19:07:01,665 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 11532 transitions. Word has length 26 [2021-10-13 19:07:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:01,666 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 11532 transitions. [2021-10-13 19:07:01,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:01,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 11532 transitions. [2021-10-13 19:07:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:01,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:01,667 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:01,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:01,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-10-13 19:07:01,879 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:01,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:01,880 INFO L82 PathProgramCache]: Analyzing trace with hash -16896903, now seen corresponding path program 1 times [2021-10-13 19:07:01,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:01,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529976480] [2021-10-13 19:07:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:01,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:07:02,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:02,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529976480] [2021-10-13 19:07:02,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529976480] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:02,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306385372] [2021-10-13 19:07:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:02,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:02,780 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:02,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 19:07:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:03,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:07:03,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:04,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:07:04,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:07:04,303 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:04,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:04,389 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:04,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:04,465 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:04,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:04,549 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:04,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:04,620 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:07:04,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:07:04,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:04,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:04,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:04,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:04,791 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:04,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:07:04,862 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:04,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:05,013 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:05,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:05,083 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:05,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:05,111 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:07:05,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306385372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:05,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:05,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 30 [2021-10-13 19:07:05,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680300489] [2021-10-13 19:07:05,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:07:05,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:07:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=851, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:07:05,115 INFO L87 Difference]: Start difference. First operand 2819 states and 11532 transitions. Second operand has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:07,094 INFO L93 Difference]: Finished difference Result 3580 states and 13250 transitions. [2021-10-13 19:07:07,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:07:07,094 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:07,108 INFO L225 Difference]: With dead ends: 3580 [2021-10-13 19:07:07,108 INFO L226 Difference]: Without dead ends: 3580 [2021-10-13 19:07:07,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1824.8ms TimeCoverageRelationStatistics Valid=369, Invalid=1611, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 19:07:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-10-13 19:07:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2819. [2021-10-13 19:07:07,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2568 states have (on average 4.345015576323988) internal successors, (11158), 2818 states have internal predecessors, (11158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 11158 transitions. [2021-10-13 19:07:07,292 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 11158 transitions. Word has length 26 [2021-10-13 19:07:07,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:07,293 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 11158 transitions. [2021-10-13 19:07:07,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 11158 transitions. [2021-10-13 19:07:07,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:07,294 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:07,294 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:07,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:07,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:07,508 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:07,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:07,509 INFO L82 PathProgramCache]: Analyzing trace with hash 180168305, now seen corresponding path program 1 times [2021-10-13 19:07:07,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:07,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913038302] [2021-10-13 19:07:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:07,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:07:08,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:08,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913038302] [2021-10-13 19:07:08,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913038302] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:08,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193278881] [2021-10-13 19:07:08,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:08,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:08,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:08,176 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:08,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 19:07:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:09,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 19:07:09,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:09,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:09,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:09,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:09,535 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:07:09,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:07:09,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:07:10,262 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:10,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:10,820 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:10,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:10,956 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:10,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:11,591 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:11,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:11,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:11,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:11,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:11,832 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:07:11,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:07:13,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:13,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:13,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:14,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:14,836 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:14,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 88 [2021-10-13 19:07:16,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:16,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:16,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:17,060 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:07:17,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:07:17,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:17,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:17,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:17,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:17,609 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:17,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:07:17,688 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:17,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:17,809 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:17,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:17,911 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:17,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:17,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:07:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:07:17,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193278881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:17,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:17,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2021-10-13 19:07:17,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806165302] [2021-10-13 19:07:17,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:07:17,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:17,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:07:17,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=787, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:07:17,971 INFO L87 Difference]: Start difference. First operand 2819 states and 11158 transitions. Second operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:19,347 INFO L93 Difference]: Finished difference Result 3393 states and 12567 transitions. [2021-10-13 19:07:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:07:19,348 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:19,359 INFO L225 Difference]: With dead ends: 3393 [2021-10-13 19:07:19,359 INFO L226 Difference]: Without dead ends: 3393 [2021-10-13 19:07:19,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1467.4ms TimeCoverageRelationStatistics Valid=282, Invalid=1124, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:07:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2021-10-13 19:07:19,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 2819. [2021-10-13 19:07:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2568 states have (on average 4.272196261682243) internal successors, (10971), 2818 states have internal predecessors, (10971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:19,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 10971 transitions. [2021-10-13 19:07:19,431 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 10971 transitions. Word has length 26 [2021-10-13 19:07:19,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:19,431 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 10971 transitions. [2021-10-13 19:07:19,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:19,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 10971 transitions. [2021-10-13 19:07:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:19,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:19,432 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:19,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:19,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-13 19:07:19,632 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:19,633 INFO L82 PathProgramCache]: Analyzing trace with hash 180168307, now seen corresponding path program 1 times [2021-10-13 19:07:19,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:19,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56292081] [2021-10-13 19:07:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:19,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:07:20,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:20,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56292081] [2021-10-13 19:07:20,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56292081] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:20,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850467590] [2021-10-13 19:07:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:20,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:20,345 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:20,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 19:07:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:21,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-13 19:07:21,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:21,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:21,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:21,822 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:07:21,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:07:22,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:07:22,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:22,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:23,114 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:23,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:23,572 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:23,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:24,242 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:24,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:07:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:24,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:24,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:24,507 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:07:24,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:07:25,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:26,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:27,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:28,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:28,790 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:28,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-10-13 19:07:30,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:30,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:30,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:07:30,389 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:07:30,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:07:30,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:30,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:30,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:30,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:30,906 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:30,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:07:31,000 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:31,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:31,160 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:31,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:31,252 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:31,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 19:07:31,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850467590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:31,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:31,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 32 [2021-10-13 19:07:31,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501331276] [2021-10-13 19:07:31,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:07:31,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:07:31,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:07:31,353 INFO L87 Difference]: Start difference. First operand 2819 states and 10971 transitions. Second operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:33,476 INFO L93 Difference]: Finished difference Result 3219 states and 11923 transitions. [2021-10-13 19:07:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:07:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:33,487 INFO L225 Difference]: With dead ends: 3219 [2021-10-13 19:07:33,487 INFO L226 Difference]: Without dead ends: 3219 [2021-10-13 19:07:33,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2166.7ms TimeCoverageRelationStatistics Valid=355, Invalid=1537, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:07:33,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2021-10-13 19:07:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 2632. [2021-10-13 19:07:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2632 states, 2381 states have (on average 4.242335153296934) internal successors, (10101), 2631 states have internal predecessors, (10101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2632 states to 2632 states and 10101 transitions. [2021-10-13 19:07:33,573 INFO L78 Accepts]: Start accepts. Automaton has 2632 states and 10101 transitions. Word has length 26 [2021-10-13 19:07:33,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:33,574 INFO L470 AbstractCegarLoop]: Abstraction has 2632 states and 10101 transitions. [2021-10-13 19:07:33,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:33,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2632 states and 10101 transitions. [2021-10-13 19:07:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:33,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:33,574 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:33,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:33,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:33,775 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:33,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:33,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2110223267, now seen corresponding path program 1 times [2021-10-13 19:07:33,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:33,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098762647] [2021-10-13 19:07:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:33,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:07:34,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:34,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098762647] [2021-10-13 19:07:34,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098762647] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:34,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379456742] [2021-10-13 19:07:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:34,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:34,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:34,168 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:34,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-13 19:07:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:35,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:07:35,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:35,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:07:35,819 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:35,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:35,886 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:35,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:35,950 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:35,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:36,021 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:36,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:36,081 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:36,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:36,145 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:36,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:36,201 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:36,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:07:36,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379456742] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:36,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:36,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:07:36,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566893272] [2021-10-13 19:07:36,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:07:36,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:36,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:07:36,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:07:36,235 INFO L87 Difference]: Start difference. First operand 2632 states and 10101 transitions. Second operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:37,039 INFO L93 Difference]: Finished difference Result 3975 states and 14866 transitions. [2021-10-13 19:07:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:07:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:37,052 INFO L225 Difference]: With dead ends: 3975 [2021-10-13 19:07:37,052 INFO L226 Difference]: Without dead ends: 3975 [2021-10-13 19:07:37,053 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 831.5ms TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:07:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2021-10-13 19:07:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3072. [2021-10-13 19:07:37,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 2821 states have (on average 4.397376816731655) internal successors, (12405), 3071 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 12405 transitions. [2021-10-13 19:07:37,130 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 12405 transitions. Word has length 26 [2021-10-13 19:07:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:37,130 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 12405 transitions. [2021-10-13 19:07:37,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:37,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 12405 transitions. [2021-10-13 19:07:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:37,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:37,131 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:37,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:37,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:37,346 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:37,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:37,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2110223353, now seen corresponding path program 1 times [2021-10-13 19:07:37,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:37,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552474114] [2021-10-13 19:07:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:37,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:07:38,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:38,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552474114] [2021-10-13 19:07:38,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552474114] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:38,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156536199] [2021-10-13 19:07:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:38,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:38,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:38,570 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:38,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-13 19:07:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:40,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:07:40,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:40,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:07:40,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:07:40,378 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:40,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:40,477 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:40,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:40,572 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:40,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:40,669 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:40,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:40,763 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:07:40,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:07:40,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:40,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:40,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:40,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:07:40,957 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:40,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:07:41,030 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:41,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:41,116 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:41,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:41,197 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:41,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:07:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:07:41,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156536199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:41,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:41,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14] total 35 [2021-10-13 19:07:41,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274096307] [2021-10-13 19:07:41,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-13 19:07:41,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:41,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-13 19:07:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:07:41,333 INFO L87 Difference]: Start difference. First operand 3072 states and 12405 transitions. Second operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:44,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:44,425 INFO L93 Difference]: Finished difference Result 3975 states and 14646 transitions. [2021-10-13 19:07:44,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:07:44,426 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:44,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:44,438 INFO L225 Difference]: With dead ends: 3975 [2021-10-13 19:07:44,438 INFO L226 Difference]: Without dead ends: 3975 [2021-10-13 19:07:44,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 3143.4ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 19:07:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2021-10-13 19:07:44,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3072. [2021-10-13 19:07:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 2821 states have (on average 4.319390287132222) internal successors, (12185), 3071 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 12185 transitions. [2021-10-13 19:07:44,505 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 12185 transitions. Word has length 26 [2021-10-13 19:07:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:44,505 INFO L470 AbstractCegarLoop]: Abstraction has 3072 states and 12185 transitions. [2021-10-13 19:07:44,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 12185 transitions. [2021-10-13 19:07:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:44,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:44,506 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:44,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:44,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-13 19:07:44,707 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:44,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2110223355, now seen corresponding path program 1 times [2021-10-13 19:07:44,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:44,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262082142] [2021-10-13 19:07:44,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:44,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:07:45,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:45,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262082142] [2021-10-13 19:07:45,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262082142] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:45,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899338691] [2021-10-13 19:07:45,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:45,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:45,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:45,996 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:45,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-13 19:07:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:47,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:07:47,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:47,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:07:47,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:07:47,769 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:47,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:47,866 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:47,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:47,967 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:47,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:48,069 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:48,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:07:48,152 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:07:48,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:07:48,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:48,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:48,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:48,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:07:48,337 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:07:48,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:07:48,416 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:48,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:48,503 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:48,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:48,577 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:48,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:48,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:07:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:07:48,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899338691] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:48,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:48,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14] total 35 [2021-10-13 19:07:48,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937759793] [2021-10-13 19:07:48,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-13 19:07:48,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:48,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-13 19:07:48,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:07:48,660 INFO L87 Difference]: Start difference. First operand 3072 states and 12185 transitions. Second operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:51,843 INFO L93 Difference]: Finished difference Result 3535 states and 13218 transitions. [2021-10-13 19:07:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:07:51,843 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:51,854 INFO L225 Difference]: With dead ends: 3535 [2021-10-13 19:07:51,854 INFO L226 Difference]: Without dead ends: 3535 [2021-10-13 19:07:51,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 3194.6ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 19:07:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2021-10-13 19:07:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 2852. [2021-10-13 19:07:51,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2601 states have (on average 4.198769703960015) internal successors, (10921), 2851 states have internal predecessors, (10921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 10921 transitions. [2021-10-13 19:07:51,917 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 10921 transitions. Word has length 26 [2021-10-13 19:07:51,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:51,917 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 10921 transitions. [2021-10-13 19:07:51,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:51,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 10921 transitions. [2021-10-13 19:07:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:51,918 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:51,918 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:51,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:52,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-13 19:07:52,119 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:52,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2110223357, now seen corresponding path program 1 times [2021-10-13 19:07:52,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:52,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839779997] [2021-10-13 19:07:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:52,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:52,450 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:07:52,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:52,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839779997] [2021-10-13 19:07:52,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839779997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:52,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992933319] [2021-10-13 19:07:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:52,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:52,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:52,453 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:52,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-13 19:07:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:53,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:07:53,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:54,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:07:54,166 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:54,240 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:54,314 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:07:54,376 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:07:54,438 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:54,498 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:54,553 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:54,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:07:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:07:54,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992933319] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:54,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:07:54,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:07:54,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637255340] [2021-10-13 19:07:54,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:07:54,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:07:54,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:07:54,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:07:54,589 INFO L87 Difference]: Start difference. First operand 2852 states and 10921 transitions. Second operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:55,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:07:55,139 INFO L93 Difference]: Finished difference Result 3095 states and 11350 transitions. [2021-10-13 19:07:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:07:55,140 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:07:55,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:07:55,149 INFO L225 Difference]: With dead ends: 3095 [2021-10-13 19:07:55,149 INFO L226 Difference]: Without dead ends: 3095 [2021-10-13 19:07:55,149 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 594.6ms TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:07:55,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2021-10-13 19:07:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2852. [2021-10-13 19:07:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2601 states have (on average 4.114186851211072) internal successors, (10701), 2851 states have internal predecessors, (10701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:55,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 10701 transitions. [2021-10-13 19:07:55,203 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 10701 transitions. Word has length 26 [2021-10-13 19:07:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:07:55,203 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 10701 transitions. [2021-10-13 19:07:55,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:07:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 10701 transitions. [2021-10-13 19:07:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:07:55,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:07:55,204 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:07:55,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-13 19:07:55,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-13 19:07:55,405 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:07:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:07:55,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2109795781, now seen corresponding path program 1 times [2021-10-13 19:07:55,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:07:55,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807167062] [2021-10-13 19:07:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:55,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:07:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:55,998 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:07:55,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:07:55,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807167062] [2021-10-13 19:07:55,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807167062] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:07:55,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996888327] [2021-10-13 19:07:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:07:55,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:07:56,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:07:56,003 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:07:56,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-13 19:07:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:07:57,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:07:57,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:07:57,759 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:07:57,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 108 [2021-10-13 19:07:58,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:07:58,831 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:58,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:59,344 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:59,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:07:59,958 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:07:59,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:08:00,609 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:00,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:01,351 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:08:01,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-13 19:08:03,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:03,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:04,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:05,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:05,898 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:08:05,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 96 [2021-10-13 19:08:08,702 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:08:08,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-13 19:08:08,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:08,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:09,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:09,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:09,106 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:08:09,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:08:09,142 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:09,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:09,181 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:09,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:09,208 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:09,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:08:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:08:09,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996888327] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:09,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:09,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2021-10-13 19:08:09,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096021524] [2021-10-13 19:08:09,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:08:09,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:08:09,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:08:09,243 INFO L87 Difference]: Start difference. First operand 2852 states and 10701 transitions. Second operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:10,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:10,253 INFO L93 Difference]: Finished difference Result 4416 states and 16708 transitions. [2021-10-13 19:08:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:08:10,254 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:08:10,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:10,273 INFO L225 Difference]: With dead ends: 4416 [2021-10-13 19:08:10,273 INFO L226 Difference]: Without dead ends: 4416 [2021-10-13 19:08:10,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1244.7ms TimeCoverageRelationStatistics Valid=252, Invalid=678, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:08:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2021-10-13 19:08:10,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 3166. [2021-10-13 19:08:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.513550600343053) internal successors, (13157), 3165 states have internal predecessors, (13157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 13157 transitions. [2021-10-13 19:08:10,347 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 13157 transitions. Word has length 26 [2021-10-13 19:08:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:10,347 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 13157 transitions. [2021-10-13 19:08:10,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 13157 transitions. [2021-10-13 19:08:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:08:10,348 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:10,348 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:10,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:10,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:10,557 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:08:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:10,557 INFO L82 PathProgramCache]: Analyzing trace with hash 2109795782, now seen corresponding path program 1 times [2021-10-13 19:08:10,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:10,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176618526] [2021-10-13 19:08:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:10,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:08:11,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:11,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176618526] [2021-10-13 19:08:11,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176618526] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:11,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986422898] [2021-10-13 19:08:11,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:11,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:11,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:11,141 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:11,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-13 19:08:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:12,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-13 19:08:12,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:12,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:12,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:12,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:12,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:12,891 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:08:12,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 113 [2021-10-13 19:08:13,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:08:13,914 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:13,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:14,439 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:14,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:15,078 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:15,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:15,712 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:15,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:08:16,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:16,593 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:08:16,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-13 19:08:18,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:19,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:20,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:22,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:22,198 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:08:22,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-13 19:08:24,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:24,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:08:24,310 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:08:24,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-13 19:08:24,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:24,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:24,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:24,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:24,822 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:08:24,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:08:24,901 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:24,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:25,005 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:25,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:25,055 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:25,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:08:25,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986422898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:25,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:25,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-13 19:08:25,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720475198] [2021-10-13 19:08:25,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:08:25,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:08:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:08:25,092 INFO L87 Difference]: Start difference. First operand 3166 states and 13157 transitions. Second operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:26,026 INFO L93 Difference]: Finished difference Result 4102 states and 15502 transitions. [2021-10-13 19:08:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:08:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:08:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:26,040 INFO L225 Difference]: With dead ends: 4102 [2021-10-13 19:08:26,040 INFO L226 Difference]: Without dead ends: 4102 [2021-10-13 19:08:26,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 1212.4ms TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:08:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2021-10-13 19:08:26,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 3166. [2021-10-13 19:08:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.405831903945112) internal successors, (12843), 3165 states have internal predecessors, (12843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 12843 transitions. [2021-10-13 19:08:26,112 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 12843 transitions. Word has length 26 [2021-10-13 19:08:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:26,112 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 12843 transitions. [2021-10-13 19:08:26,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 12843 transitions. [2021-10-13 19:08:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:08:26,113 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:26,113 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:26,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:26,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-13 19:08:26,328 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:08:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2109795686, now seen corresponding path program 1 times [2021-10-13 19:08:26,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:26,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179022175] [2021-10-13 19:08:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:26,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:08:26,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:26,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179022175] [2021-10-13 19:08:26,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179022175] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:26,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530035362] [2021-10-13 19:08:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:26,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:26,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:26,779 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:26,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-13 19:08:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:28,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:08:28,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:28,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:08:28,763 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:28,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:08:28,833 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:28,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:08:28,890 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:28,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:08:28,962 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:28,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:29,020 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:29,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:08:29,085 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:29,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:08:29,134 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:29,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:08:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:08:29,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530035362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:29,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:29,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:08:29,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944229719] [2021-10-13 19:08:29,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:08:29,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:29,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:08:29,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:08:29,166 INFO L87 Difference]: Start difference. First operand 3166 states and 12843 transitions. Second operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:29,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:29,973 INFO L93 Difference]: Finished difference Result 3788 states and 14296 transitions. [2021-10-13 19:08:29,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:08:29,973 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:08:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:29,986 INFO L225 Difference]: With dead ends: 3788 [2021-10-13 19:08:29,986 INFO L226 Difference]: Without dead ends: 3788 [2021-10-13 19:08:29,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 832.2ms TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:08:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2021-10-13 19:08:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3166. [2021-10-13 19:08:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.2981132075471695) internal successors, (12529), 3165 states have internal predecessors, (12529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 12529 transitions. [2021-10-13 19:08:30,066 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 12529 transitions. Word has length 26 [2021-10-13 19:08:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:30,067 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 12529 transitions. [2021-10-13 19:08:30,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:30,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 12529 transitions. [2021-10-13 19:08:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:08:30,067 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:30,067 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:30,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:30,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:30,269 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:08:30,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:30,270 INFO L82 PathProgramCache]: Analyzing trace with hash 2109795778, now seen corresponding path program 1 times [2021-10-13 19:08:30,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:30,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018988944] [2021-10-13 19:08:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:30,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:08:31,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:31,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018988944] [2021-10-13 19:08:31,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018988944] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:31,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26471221] [2021-10-13 19:08:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:31,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:31,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:31,147 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:31,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-13 19:08:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:32,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:08:32,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:33,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:08:33,185 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:33,241 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:33,317 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:33,384 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:08:33,447 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:33,510 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:33,565 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:08:33,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:08:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:08:33,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26471221] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:33,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:33,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:08:33,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528209036] [2021-10-13 19:08:33,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:08:33,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:08:33,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:08:33,599 INFO L87 Difference]: Start difference. First operand 3166 states and 12529 transitions. Second operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:34,458 INFO L93 Difference]: Finished difference Result 3474 states and 13090 transitions. [2021-10-13 19:08:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:08:34,459 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 19:08:34,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:34,474 INFO L225 Difference]: With dead ends: 3474 [2021-10-13 19:08:34,474 INFO L226 Difference]: Without dead ends: 3474 [2021-10-13 19:08:34,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 942.9ms TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:08:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3474 states. [2021-10-13 19:08:34,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 3166. [2021-10-13 19:08:34,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2915 states have (on average 4.190394511149228) internal successors, (12215), 3165 states have internal predecessors, (12215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:34,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 12215 transitions. [2021-10-13 19:08:34,560 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 12215 transitions. Word has length 26 [2021-10-13 19:08:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:34,560 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 12215 transitions. [2021-10-13 19:08:34,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 12215 transitions. [2021-10-13 19:08:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:08:34,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:34,561 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:34,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:34,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:34,762 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:08:34,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:34,762 INFO L82 PathProgramCache]: Analyzing trace with hash -377991562, now seen corresponding path program 2 times [2021-10-13 19:08:34,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:34,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522912416] [2021-10-13 19:08:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:34,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:35,402 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:08:35,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:35,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522912416] [2021-10-13 19:08:35,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522912416] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:35,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192353423] [2021-10-13 19:08:35,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:08:35,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:35,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:35,410 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:35,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-13 19:08:37,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:08:37,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:08:37,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-13 19:08:37,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:37,397 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:08:37,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 118 [2021-10-13 19:08:39,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:08:40,502 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:08:40,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:41,329 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:08:41,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:08:42,420 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:08:42,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 84 treesize of output 130 [2021-10-13 19:08:45,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:47,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:48,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:49,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:49,884 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:08:49,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 118 [2021-10-13 19:08:52,705 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:08:52,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 110 treesize of output 176 [2021-10-13 19:08:52,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:52,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:52,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:53,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:53,037 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:08:53,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:08:53,099 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:08:53,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:08:53,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:08:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:08:53,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192353423] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:53,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:53,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 30 [2021-10-13 19:08:53,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663119243] [2021-10-13 19:08:53,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:08:53,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:53,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:08:53,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:08:53,326 INFO L87 Difference]: Start difference. First operand 3166 states and 12215 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:58,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:58,953 INFO L93 Difference]: Finished difference Result 3921 states and 15380 transitions. [2021-10-13 19:08:58,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:08:58,954 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:08:58,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:58,967 INFO L225 Difference]: With dead ends: 3921 [2021-10-13 19:08:58,967 INFO L226 Difference]: Without dead ends: 3921 [2021-10-13 19:08:58,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 3428.0ms TimeCoverageRelationStatistics Valid=463, Invalid=2507, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 19:08:58,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2021-10-13 19:08:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3409. [2021-10-13 19:08:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 3158 states have (on average 4.452501583280557) internal successors, (14061), 3408 states have internal predecessors, (14061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 14061 transitions. [2021-10-13 19:08:59,047 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 14061 transitions. Word has length 27 [2021-10-13 19:08:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:59,048 INFO L470 AbstractCegarLoop]: Abstraction has 3409 states and 14061 transitions. [2021-10-13 19:08:59,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 14061 transitions. [2021-10-13 19:08:59,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:08:59,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:59,049 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:59,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:59,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:59,257 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:08:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:59,258 INFO L82 PathProgramCache]: Analyzing trace with hash -377991560, now seen corresponding path program 2 times [2021-10-13 19:08:59,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:59,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006069233] [2021-10-13 19:08:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:59,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:08:59,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:59,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006069233] [2021-10-13 19:08:59,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006069233] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:59,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139975767] [2021-10-13 19:08:59,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:08:59,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:59,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:59,881 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:59,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-13 19:09:01,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:09:01,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:09:01,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-13 19:09:01,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:09:01,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:09:02,061 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:09:02,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:09:03,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:09:04,537 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:04,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:09:05,154 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:05,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:09:05,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:09:05,473 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:09:05,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:09:06,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:07,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:09,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:09,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:10,959 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:09:10,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 102 [2021-10-13 19:09:13,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:09:13,395 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:09:13,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:09:13,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:13,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:13,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:13,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:13,709 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:09:13,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:09:13,776 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:13,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:09:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:09:14,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139975767] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:14,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:09:14,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 31 [2021-10-13 19:09:14,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326636830] [2021-10-13 19:09:14,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:09:14,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:14,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:09:14,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=938, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:09:14,058 INFO L87 Difference]: Start difference. First operand 3409 states and 14061 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:17,692 INFO L93 Difference]: Finished difference Result 3919 states and 15135 transitions. [2021-10-13 19:09:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:09:17,693 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:09:17,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:17,704 INFO L225 Difference]: With dead ends: 3919 [2021-10-13 19:09:17,705 INFO L226 Difference]: Without dead ends: 3919 [2021-10-13 19:09:17,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3270.2ms TimeCoverageRelationStatistics Valid=463, Invalid=2617, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:09:17,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2021-10-13 19:09:17,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3181. [2021-10-13 19:09:17,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2930 states have (on average 4.197952218430034) internal successors, (12300), 3180 states have internal predecessors, (12300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12300 transitions. [2021-10-13 19:09:17,791 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12300 transitions. Word has length 27 [2021-10-13 19:09:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:17,792 INFO L470 AbstractCegarLoop]: Abstraction has 3181 states and 12300 transitions. [2021-10-13 19:09:17,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12300 transitions. [2021-10-13 19:09:17,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:09:17,792 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:17,792 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:17,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-13 19:09:17,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-13 19:09:17,993 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:09:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash -377991575, now seen corresponding path program 2 times [2021-10-13 19:09:17,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:17,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894478622] [2021-10-13 19:09:17,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:17,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:09:18,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:18,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894478622] [2021-10-13 19:09:18,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894478622] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:18,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020058496] [2021-10-13 19:09:18,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:09:18,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:09:18,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:09:18,615 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:09:18,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-13 19:09:20,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:09:20,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:09:20,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:09:20,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:09:20,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:09:20,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:09:20,855 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:20,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:09:20,920 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:20,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:09:20,974 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:09:20,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:09:21,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:21,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:21,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:21,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:09:21,091 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:09:21,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:09:21,144 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:21,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:09:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:09:21,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020058496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:21,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:09:21,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-13 19:09:21,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063017308] [2021-10-13 19:09:21,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:09:21,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:09:21,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:09:21,333 INFO L87 Difference]: Start difference. First operand 3181 states and 12300 transitions. Second operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:23,483 INFO L93 Difference]: Finished difference Result 3667 states and 13569 transitions. [2021-10-13 19:09:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:09:23,484 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:09:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:23,495 INFO L225 Difference]: With dead ends: 3667 [2021-10-13 19:09:23,495 INFO L226 Difference]: Without dead ends: 3667 [2021-10-13 19:09:23,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1816.4ms TimeCoverageRelationStatistics Valid=362, Invalid=2088, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 19:09:23,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2021-10-13 19:09:23,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3181. [2021-10-13 19:09:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2930 states have (on average 4.197610921501706) internal successors, (12299), 3180 states have internal predecessors, (12299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12299 transitions. [2021-10-13 19:09:23,567 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12299 transitions. Word has length 27 [2021-10-13 19:09:23,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:23,567 INFO L470 AbstractCegarLoop]: Abstraction has 3181 states and 12299 transitions. [2021-10-13 19:09:23,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12299 transitions. [2021-10-13 19:09:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:09:23,570 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:23,570 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:23,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-13 19:09:23,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-13 19:09:23,784 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:09:23,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:23,785 INFO L82 PathProgramCache]: Analyzing trace with hash -377991630, now seen corresponding path program 2 times [2021-10-13 19:09:23,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:23,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353553980] [2021-10-13 19:09:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:23,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:09:24,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:24,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353553980] [2021-10-13 19:09:24,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353553980] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:24,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352029252] [2021-10-13 19:09:24,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:09:24,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:09:24,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:09:24,462 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:09:24,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-13 19:09:26,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:09:26,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:09:26,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:09:26,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:09:26,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:09:26,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:09:26,808 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:26,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:09:26,878 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:26,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:09:26,935 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:09:26,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:09:26,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:09:27,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:09:27,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:09:27,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:09:27,049 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:09:27,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:09:27,107 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:27,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:09:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:09:27,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352029252] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:27,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:09:27,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-13 19:09:27,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410619088] [2021-10-13 19:09:27,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:09:27,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:27,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:09:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=954, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:09:27,290 INFO L87 Difference]: Start difference. First operand 3181 states and 12299 transitions. Second operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:29,315 INFO L93 Difference]: Finished difference Result 3184 states and 12301 transitions. [2021-10-13 19:09:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:09:29,316 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:09:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:29,326 INFO L225 Difference]: With dead ends: 3184 [2021-10-13 19:09:29,326 INFO L226 Difference]: Without dead ends: 3184 [2021-10-13 19:09:29,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1944.4ms TimeCoverageRelationStatistics Valid=374, Invalid=2076, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 19:09:29,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2021-10-13 19:09:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3181. [2021-10-13 19:09:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2930 states have (on average 4.197269624573379) internal successors, (12298), 3180 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12298 transitions. [2021-10-13 19:09:29,397 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12298 transitions. Word has length 27 [2021-10-13 19:09:29,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:29,398 INFO L470 AbstractCegarLoop]: Abstraction has 3181 states and 12298 transitions. [2021-10-13 19:09:29,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12298 transitions. [2021-10-13 19:09:29,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:09:29,399 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:29,399 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:29,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-13 19:09:29,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:09:29,600 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:09:29,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:29,600 INFO L82 PathProgramCache]: Analyzing trace with hash 979161702, now seen corresponding path program 1 times [2021-10-13 19:09:29,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:29,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526843442] [2021-10-13 19:09:29,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:29,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:09:31,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:31,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526843442] [2021-10-13 19:09:31,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526843442] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:31,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318913141] [2021-10-13 19:09:31,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:31,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:09:31,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:09:31,452 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:09:31,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-13 19:09:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:33,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 19:09:33,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:09:33,704 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:09:33,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 257 treesize of output 271 [2021-10-13 19:09:35,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:09:35,526 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:35,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:09:36,209 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:36,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:09:36,685 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:36,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:09:37,286 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:09:37,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-13 19:09:38,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:40,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:42,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:42,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:42,765 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:09:42,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 96 [2021-10-13 19:09:45,025 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:09:45,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-13 19:09:45,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:45,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:45,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:45,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:45,632 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:09:45,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:09:45,727 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:09:45,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:45,834 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:09:45,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:45,923 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:09:45,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:09:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:09:46,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318913141] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:46,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:09:46,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 34 [2021-10-13 19:09:46,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497960690] [2021-10-13 19:09:46,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-13 19:09:46,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:46,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-13 19:09:46,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1123, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:09:46,125 INFO L87 Difference]: Start difference. First operand 3181 states and 12298 transitions. Second operand has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:50,008 INFO L93 Difference]: Finished difference Result 5053 states and 19180 transitions. [2021-10-13 19:09:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:09:50,008 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:09:50,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:50,027 INFO L225 Difference]: With dead ends: 5053 [2021-10-13 19:09:50,027 INFO L226 Difference]: Without dead ends: 5053 [2021-10-13 19:09:50,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 4257.1ms TimeCoverageRelationStatistics Valid=408, Invalid=1944, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 19:09:50,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5053 states. [2021-10-13 19:09:50,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5053 to 3495. [2021-10-13 19:09:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3244 states have (on average 4.548088779284834) internal successors, (14754), 3494 states have internal predecessors, (14754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:50,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 14754 transitions. [2021-10-13 19:09:50,121 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 14754 transitions. Word has length 27 [2021-10-13 19:09:50,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:50,121 INFO L470 AbstractCegarLoop]: Abstraction has 3495 states and 14754 transitions. [2021-10-13 19:09:50,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:50,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 14754 transitions. [2021-10-13 19:09:50,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:09:50,122 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:50,122 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:50,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-13 19:09:50,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-13 19:09:50,323 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:09:50,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:50,323 INFO L82 PathProgramCache]: Analyzing trace with hash 979161703, now seen corresponding path program 1 times [2021-10-13 19:09:50,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:50,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119080271] [2021-10-13 19:09:50,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:50,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:09:51,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:51,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119080271] [2021-10-13 19:09:51,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119080271] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:09:51,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030918473] [2021-10-13 19:09:51,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:51,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:09:51,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:09:51,097 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:09:51,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-13 19:09:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:53,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-13 19:09:53,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:09:53,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:09:53,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:09:53,465 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:09:53,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 100 [2021-10-13 19:09:54,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:09:55,308 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:55,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:09:55,927 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:55,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:09:56,585 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:09:56,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:09:57,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:09:57,484 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:09:57,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-13 19:09:59,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:00,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:01,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:02,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:03,116 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:10:03,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 100 [2021-10-13 19:10:06,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:10:06,772 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:10:06,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-13 19:10:07,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:07,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:07,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:07,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:07,259 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:10:07,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 19:10:07,329 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:07,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:07,388 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:07,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:07,422 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:07,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:10:07,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030918473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:07,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:07,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2021-10-13 19:10:07,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866365394] [2021-10-13 19:10:07,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:10:07,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:07,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:10:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:10:07,477 INFO L87 Difference]: Start difference. First operand 3495 states and 14754 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:10,096 INFO L93 Difference]: Finished difference Result 9461 states and 35930 transitions. [2021-10-13 19:10:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:10:10,097 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:10,135 INFO L225 Difference]: With dead ends: 9461 [2021-10-13 19:10:10,135 INFO L226 Difference]: Without dead ends: 9461 [2021-10-13 19:10:10,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2228.7ms TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2021-10-13 19:10:10,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9461 states. [2021-10-13 19:10:10,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9461 to 3495. [2021-10-13 19:10:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3244 states have (on average 4.451294697903823) internal successors, (14440), 3494 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 14440 transitions. [2021-10-13 19:10:10,273 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 14440 transitions. Word has length 27 [2021-10-13 19:10:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:10,273 INFO L470 AbstractCegarLoop]: Abstraction has 3495 states and 14440 transitions. [2021-10-13 19:10:10,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 14440 transitions. [2021-10-13 19:10:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:10:10,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:10,275 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:10,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-13 19:10:10,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:10,483 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:10,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:10,483 INFO L82 PathProgramCache]: Analyzing trace with hash 979161607, now seen corresponding path program 1 times [2021-10-13 19:10:10,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:10,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274663807] [2021-10-13 19:10:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:10,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:11,008 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:10:11,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:11,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274663807] [2021-10-13 19:10:11,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274663807] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:11,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189757765] [2021-10-13 19:10:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:11,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:11,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:11,010 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:11,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-13 19:10:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:13,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:10:13,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:13,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:10:13,628 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:13,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:13,701 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:13,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:13,777 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:13,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:13,835 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:13,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:13,899 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:13,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:13,953 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:13,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:10:13,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189757765] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:13,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:13,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-10-13 19:10:13,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677094516] [2021-10-13 19:10:13,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:10:13,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:13,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:10:13,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:10:13,996 INFO L87 Difference]: Start difference. First operand 3495 states and 14440 transitions. Second operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:14,959 INFO L93 Difference]: Finished difference Result 4425 states and 16768 transitions. [2021-10-13 19:10:14,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:10:14,960 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:14,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:14,976 INFO L225 Difference]: With dead ends: 4425 [2021-10-13 19:10:14,976 INFO L226 Difference]: Without dead ends: 4425 [2021-10-13 19:10:14,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 826.7ms TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:10:14,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2021-10-13 19:10:15,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 3495. [2021-10-13 19:10:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3244 states have (on average 4.354500616522811) internal successors, (14126), 3494 states have internal predecessors, (14126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 14126 transitions. [2021-10-13 19:10:15,111 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 14126 transitions. Word has length 27 [2021-10-13 19:10:15,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:15,111 INFO L470 AbstractCegarLoop]: Abstraction has 3495 states and 14126 transitions. [2021-10-13 19:10:15,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 14126 transitions. [2021-10-13 19:10:15,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:10:15,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:15,112 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:15,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-13 19:10:15,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-13 19:10:15,327 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:15,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:15,327 INFO L82 PathProgramCache]: Analyzing trace with hash 979161699, now seen corresponding path program 1 times [2021-10-13 19:10:15,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:15,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298521745] [2021-10-13 19:10:15,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:15,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 19:10:16,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:16,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298521745] [2021-10-13 19:10:16,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298521745] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:16,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045357892] [2021-10-13 19:10:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:16,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:16,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:16,307 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:16,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-13 19:10:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:18,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:10:18,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:18,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:10:18,958 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:18,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:19,029 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:19,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:19,112 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:19,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:10:19,184 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:19,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:19,259 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:19,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:19,322 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:19,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:10:19,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045357892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:19,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:19,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12] total 26 [2021-10-13 19:10:19,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478692217] [2021-10-13 19:10:19,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:10:19,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:19,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:10:19,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:10:19,373 INFO L87 Difference]: Start difference. First operand 3495 states and 14126 transitions. Second operand has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:21,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:21,004 INFO L93 Difference]: Finished difference Result 4111 states and 15562 transitions. [2021-10-13 19:10:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:10:21,004 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:21,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:21,019 INFO L225 Difference]: With dead ends: 4111 [2021-10-13 19:10:21,019 INFO L226 Difference]: Without dead ends: 4111 [2021-10-13 19:10:21,019 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1404.0ms TimeCoverageRelationStatistics Valid=250, Invalid=1082, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:10:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2021-10-13 19:10:21,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 3495. [2021-10-13 19:10:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3244 states have (on average 4.2577065351418) internal successors, (13812), 3494 states have internal predecessors, (13812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 13812 transitions. [2021-10-13 19:10:21,182 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 13812 transitions. Word has length 27 [2021-10-13 19:10:21,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:21,182 INFO L470 AbstractCegarLoop]: Abstraction has 3495 states and 13812 transitions. [2021-10-13 19:10:21,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:21,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 13812 transitions. [2021-10-13 19:10:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:10:21,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:21,183 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:21,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2021-10-13 19:10:21,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-13 19:10:21,384 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:21,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:21,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1085312115, now seen corresponding path program 1 times [2021-10-13 19:10:21,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:21,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107634339] [2021-10-13 19:10:21,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:21,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:10:21,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:21,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107634339] [2021-10-13 19:10:21,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107634339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:21,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787317007] [2021-10-13 19:10:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:21,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:21,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:21,772 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:21,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-13 19:10:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:24,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:10:24,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:24,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:10:24,341 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:24,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:24,408 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:24,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:24,473 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:24,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:24,532 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:24,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:24,594 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:24,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:10:24,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787317007] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:24,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:24,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:10:24,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291146159] [2021-10-13 19:10:24,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:10:24,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:24,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:10:24,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:10:24,671 INFO L87 Difference]: Start difference. First operand 3495 states and 13812 transitions. Second operand has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:25,689 INFO L93 Difference]: Finished difference Result 3593 states and 14127 transitions. [2021-10-13 19:10:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:10:25,690 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:25,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:25,706 INFO L225 Difference]: With dead ends: 3593 [2021-10-13 19:10:25,706 INFO L226 Difference]: Without dead ends: 3593 [2021-10-13 19:10:25,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 719.1ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:10:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2021-10-13 19:10:25,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3523. [2021-10-13 19:10:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 3272 states have (on average 4.267114914425428) internal successors, (13962), 3522 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 13962 transitions. [2021-10-13 19:10:25,913 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 13962 transitions. Word has length 27 [2021-10-13 19:10:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:25,913 INFO L470 AbstractCegarLoop]: Abstraction has 3523 states and 13962 transitions. [2021-10-13 19:10:25,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 13962 transitions. [2021-10-13 19:10:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:10:25,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:25,914 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:25,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-13 19:10:26,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,49 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:26,115 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:26,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1085312201, now seen corresponding path program 1 times [2021-10-13 19:10:26,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:26,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518159211] [2021-10-13 19:10:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:26,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:26,681 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:10:26,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:26,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518159211] [2021-10-13 19:10:26,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518159211] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:26,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139875697] [2021-10-13 19:10:26,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:26,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:26,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:26,684 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:26,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-13 19:10:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:29,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:10:29,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:29,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:10:29,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:10:29,298 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:29,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:29,373 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:29,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:29,461 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:29,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:29,540 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:10:29,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:10:29,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:10:29,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:10:29,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:10:29,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:10:29,710 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:10:29,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:29,769 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:29,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:29,833 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:29,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:10:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:10:29,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139875697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:29,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:29,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-10-13 19:10:29,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039104015] [2021-10-13 19:10:29,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:10:29,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:10:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:10:29,961 INFO L87 Difference]: Start difference. First operand 3523 states and 13962 transitions. Second operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:31,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:31,566 INFO L93 Difference]: Finished difference Result 4395 states and 18112 transitions. [2021-10-13 19:10:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:10:31,567 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:31,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:31,585 INFO L225 Difference]: With dead ends: 4395 [2021-10-13 19:10:31,585 INFO L226 Difference]: Without dead ends: 4395 [2021-10-13 19:10:31,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 1328.8ms TimeCoverageRelationStatistics Valid=333, Invalid=1307, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:10:31,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2021-10-13 19:10:31,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3795. [2021-10-13 19:10:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3544 states have (on average 4.621896162528217) internal successors, (16380), 3794 states have internal predecessors, (16380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 16380 transitions. [2021-10-13 19:10:31,698 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 16380 transitions. Word has length 27 [2021-10-13 19:10:31,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:31,699 INFO L470 AbstractCegarLoop]: Abstraction has 3795 states and 16380 transitions. [2021-10-13 19:10:31,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:31,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 16380 transitions. [2021-10-13 19:10:31,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:10:31,700 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:31,700 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:31,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2021-10-13 19:10:31,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,50 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:31,901 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:31,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1085312203, now seen corresponding path program 1 times [2021-10-13 19:10:31,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:31,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772002971] [2021-10-13 19:10:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:31,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:33,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:33,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772002971] [2021-10-13 19:10:33,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772002971] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:33,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601316353] [2021-10-13 19:10:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:33,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:33,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:33,508 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:33,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-13 19:10:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:35,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:10:35,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:36,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:10:36,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:10:36,269 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:36,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:36,371 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:36,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:36,465 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:36,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:10:36,557 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:10:36,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:10:36,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:36,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:36,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:36,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:36,735 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:10:36,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:10:36,819 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:36,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:36,901 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:36,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:36,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:10:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:10:36,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601316353] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:36,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:36,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14] total 34 [2021-10-13 19:10:36,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197110147] [2021-10-13 19:10:36,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-13 19:10:36,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-13 19:10:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1117, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:10:36,999 INFO L87 Difference]: Start difference. First operand 3795 states and 16380 transitions. Second operand has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:40,065 INFO L93 Difference]: Finished difference Result 4381 states and 17793 transitions. [2021-10-13 19:10:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:10:40,066 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:40,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:40,084 INFO L225 Difference]: With dead ends: 4381 [2021-10-13 19:10:40,084 INFO L226 Difference]: Without dead ends: 4381 [2021-10-13 19:10:40,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2795.2ms TimeCoverageRelationStatistics Valid=436, Invalid=2320, Unknown=0, NotChecked=0, Total=2756 [2021-10-13 19:10:40,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2021-10-13 19:10:40,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 3795. [2021-10-13 19:10:40,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3544 states have (on average 4.541196388261851) internal successors, (16094), 3794 states have internal predecessors, (16094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 16094 transitions. [2021-10-13 19:10:40,290 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 16094 transitions. Word has length 27 [2021-10-13 19:10:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:40,290 INFO L470 AbstractCegarLoop]: Abstraction has 3795 states and 16094 transitions. [2021-10-13 19:10:40,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:40,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 16094 transitions. [2021-10-13 19:10:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:10:40,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:40,291 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:40,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-13 19:10:40,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,51 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:40,492 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:40,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1085312205, now seen corresponding path program 1 times [2021-10-13 19:10:40,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:40,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107229835] [2021-10-13 19:10:40,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:40,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:10:41,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:41,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107229835] [2021-10-13 19:10:41,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107229835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:41,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375359590] [2021-10-13 19:10:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:41,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:41,573 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:41,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-13 19:10:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:44,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:10:44,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:44,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:10:44,377 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:44,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:44,467 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:44,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:44,551 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:44,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:10:44,623 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:44,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:44,698 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:10:44,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:10:44,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375359590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:44,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:44,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11] total 30 [2021-10-13 19:10:44,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227387871] [2021-10-13 19:10:44,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:10:44,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:44,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:10:44,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=852, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:10:44,791 INFO L87 Difference]: Start difference. First operand 3795 states and 16094 transitions. Second operand has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:46,527 INFO L93 Difference]: Finished difference Result 3823 states and 16146 transitions. [2021-10-13 19:10:46,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:10:46,527 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 19:10:46,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:46,545 INFO L225 Difference]: With dead ends: 3823 [2021-10-13 19:10:46,545 INFO L226 Difference]: Without dead ends: 3823 [2021-10-13 19:10:46,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1498.5ms TimeCoverageRelationStatistics Valid=285, Invalid=1437, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:10:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3823 states. [2021-10-13 19:10:46,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 3795. [2021-10-13 19:10:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3544 states have (on average 4.537246049661399) internal successors, (16080), 3794 states have internal predecessors, (16080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:46,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 16080 transitions. [2021-10-13 19:10:46,681 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 16080 transitions. Word has length 27 [2021-10-13 19:10:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:46,681 INFO L470 AbstractCegarLoop]: Abstraction has 3795 states and 16080 transitions. [2021-10-13 19:10:46,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 16080 transitions. [2021-10-13 19:10:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:10:46,682 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:46,682 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:46,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-13 19:10:46,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,52 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:46,883 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:46,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:46,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1167160533, now seen corresponding path program 2 times [2021-10-13 19:10:46,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:46,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224283548] [2021-10-13 19:10:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:46,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:10:47,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:47,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224283548] [2021-10-13 19:10:47,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224283548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:47,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967574792] [2021-10-13 19:10:47,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:10:47,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:47,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:47,571 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:47,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-13 19:10:50,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:10:50,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:10:50,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:10:50,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:50,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:10:50,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:10:50,548 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:50,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:10:50,630 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:50,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:10:50,706 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:10:50,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:10:50,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:50,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:50,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:50,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:10:50,861 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:10:50,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:10:50,931 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:50,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:51,207 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:51,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:10:51,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967574792] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:51,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:51,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 33 [2021-10-13 19:10:51,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981188069] [2021-10-13 19:10:51,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-13 19:10:51,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:51,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-13 19:10:51,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1084, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:10:51,257 INFO L87 Difference]: Start difference. First operand 3795 states and 16080 transitions. Second operand has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:54,215 INFO L93 Difference]: Finished difference Result 3918 states and 16391 transitions. [2021-10-13 19:10:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:10:54,215 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:10:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:54,232 INFO L225 Difference]: With dead ends: 3918 [2021-10-13 19:10:54,232 INFO L226 Difference]: Without dead ends: 3918 [2021-10-13 19:10:54,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2456.4ms TimeCoverageRelationStatistics Valid=358, Invalid=2192, Unknown=0, NotChecked=0, Total=2550 [2021-10-13 19:10:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2021-10-13 19:10:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3825. [2021-10-13 19:10:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 3574 states have (on average 4.53329602686066) internal successors, (16202), 3824 states have internal predecessors, (16202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 16202 transitions. [2021-10-13 19:10:54,408 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 16202 transitions. Word has length 28 [2021-10-13 19:10:54,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:54,408 INFO L470 AbstractCegarLoop]: Abstraction has 3825 states and 16202 transitions. [2021-10-13 19:10:54,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:54,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 16202 transitions. [2021-10-13 19:10:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:10:54,409 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:54,409 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:54,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-13 19:10:54,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,53 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:54,615 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:10:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:54,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1167160478, now seen corresponding path program 2 times [2021-10-13 19:10:54,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:54,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198609806] [2021-10-13 19:10:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:54,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:10:55,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:55,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198609806] [2021-10-13 19:10:55,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198609806] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:55,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197623274] [2021-10-13 19:10:55,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:10:55,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:10:55,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:10:55,271 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:10:55,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-13 19:10:57,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:10:57,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:10:57,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:10:57,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:10:57,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:10:57,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:10:58,052 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:58,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:10:58,145 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:58,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:10:58,215 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:10:58,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:10:58,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:58,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:58,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:58,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:10:58,391 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:10:58,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:10:58,462 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:58,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:58,730 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:10:58,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:10:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:10:58,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197623274] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:10:58,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:10:58,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 33 [2021-10-13 19:10:58,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119344022] [2021-10-13 19:10:58,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-13 19:10:58,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:58,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-13 19:10:58,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:10:58,789 INFO L87 Difference]: Start difference. First operand 3825 states and 16202 transitions. Second operand has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:01,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:01,961 INFO L93 Difference]: Finished difference Result 4449 states and 17996 transitions. [2021-10-13 19:11:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:11:01,962 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:11:01,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:01,982 INFO L225 Difference]: With dead ends: 4449 [2021-10-13 19:11:01,982 INFO L226 Difference]: Without dead ends: 4449 [2021-10-13 19:11:01,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2424.9ms TimeCoverageRelationStatistics Valid=368, Invalid=2284, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 19:11:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2021-10-13 19:11:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 3825. [2021-10-13 19:11:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 3574 states have (on average 4.524902070509233) internal successors, (16172), 3824 states have internal predecessors, (16172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 16172 transitions. [2021-10-13 19:11:02,083 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 16172 transitions. Word has length 28 [2021-10-13 19:11:02,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:02,084 INFO L470 AbstractCegarLoop]: Abstraction has 3825 states and 16172 transitions. [2021-10-13 19:11:02,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:02,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 16172 transitions. [2021-10-13 19:11:02,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:11:02,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:02,085 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:02,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-13 19:11:02,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-10-13 19:11:02,286 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:11:02,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:02,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1167369796, now seen corresponding path program 2 times [2021-10-13 19:11:02,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:02,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122379888] [2021-10-13 19:11:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:02,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:11:02,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:02,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122379888] [2021-10-13 19:11:02,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122379888] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:11:02,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641307021] [2021-10-13 19:11:02,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:11:02,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:11:02,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:11:02,994 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:11:02,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-13 19:11:05,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:11:05,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:11:05,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 19:11:05,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:11:05,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:05,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:05,836 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:11:05,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:11:07,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:11:08,389 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:08,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:11:09,719 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:09,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:11:09,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:09,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:10,000 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-13 19:11:10,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:11:12,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:12,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:14,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:15,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:15,791 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:11:15,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 95 [2021-10-13 19:11:17,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:17,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:17,770 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-13 19:11:17,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:11:18,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:18,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:18,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:18,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:18,288 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:11:18,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:11:18,388 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:18,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:11:18,728 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:18,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:11:18,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:11:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:11:18,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641307021] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:11:18,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:11:18,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-10-13 19:11:18,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032378477] [2021-10-13 19:11:18,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:11:18,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:18,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:11:18,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:11:18,797 INFO L87 Difference]: Start difference. First operand 3825 states and 16172 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:25,258 INFO L93 Difference]: Finished difference Result 5301 states and 23034 transitions. [2021-10-13 19:11:25,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:11:25,259 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:11:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:25,280 INFO L225 Difference]: With dead ends: 5301 [2021-10-13 19:11:25,280 INFO L226 Difference]: Without dead ends: 5301 [2021-10-13 19:11:25,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 4517.0ms TimeCoverageRelationStatistics Valid=458, Invalid=2622, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:11:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2021-10-13 19:11:25,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 4098. [2021-10-13 19:11:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 3847 states have (on average 4.771250324928515) internal successors, (18355), 4097 states have internal predecessors, (18355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 18355 transitions. [2021-10-13 19:11:25,399 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 18355 transitions. Word has length 28 [2021-10-13 19:11:25,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:25,399 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 18355 transitions. [2021-10-13 19:11:25,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:25,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 18355 transitions. [2021-10-13 19:11:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:11:25,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:25,400 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:25,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-10-13 19:11:25,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-10-13 19:11:25,601 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:11:25,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:25,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1167369798, now seen corresponding path program 2 times [2021-10-13 19:11:25,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:25,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157575854] [2021-10-13 19:11:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:25,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:11:26,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:26,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157575854] [2021-10-13 19:11:26,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157575854] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:11:26,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028429229] [2021-10-13 19:11:26,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:11:26,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:11:26,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:11:26,396 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:11:26,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-13 19:11:29,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:11:29,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:11:29,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 19:11:29,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:11:29,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:29,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:29,320 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:11:29,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:11:30,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:11:31,523 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:31,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:11:32,689 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:32,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:11:32,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:32,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:32,969 INFO L354 Elim1Store]: treesize reduction 278, result has 18.7 percent of original size [2021-10-13 19:11:32,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:11:35,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:36,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:37,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:37,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:39,318 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:11:39,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-10-13 19:11:41,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:41,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:11:41,632 INFO L354 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2021-10-13 19:11:41,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:11:41,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:42,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:42,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:42,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:11:42,146 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:11:42,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:11:42,229 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:42,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:11:42,575 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:42,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:11:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:11:42,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028429229] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:11:42,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:11:42,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2021-10-13 19:11:42,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761509301] [2021-10-13 19:11:42,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:11:42,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:11:42,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:11:42,717 INFO L87 Difference]: Start difference. First operand 4098 states and 18355 transitions. Second operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:52,278 INFO L93 Difference]: Finished difference Result 5271 states and 22669 transitions. [2021-10-13 19:11:52,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:11:52,279 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:11:52,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:52,315 INFO L225 Difference]: With dead ends: 5271 [2021-10-13 19:11:52,315 INFO L226 Difference]: Without dead ends: 5271 [2021-10-13 19:11:52,316 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 4627.5ms TimeCoverageRelationStatistics Valid=511, Invalid=2911, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 19:11:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2021-10-13 19:11:52,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 3810. [2021-10-13 19:11:52,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3810 states, 3559 states have (on average 4.5226187131216635) internal successors, (16096), 3809 states have internal predecessors, (16096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 16096 transitions. [2021-10-13 19:11:52,487 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 16096 transitions. Word has length 28 [2021-10-13 19:11:52,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:52,488 INFO L470 AbstractCegarLoop]: Abstraction has 3810 states and 16096 transitions. [2021-10-13 19:11:52,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:52,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 16096 transitions. [2021-10-13 19:11:52,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:11:52,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:52,489 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:52,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-10-13 19:11:52,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-13 19:11:52,705 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:11:52,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:52,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1162461398, now seen corresponding path program 1 times [2021-10-13 19:11:52,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:52,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397342335] [2021-10-13 19:11:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:52,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:11:53,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:53,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397342335] [2021-10-13 19:11:53,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397342335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:11:53,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342675088] [2021-10-13 19:11:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:53,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:11:53,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:11:53,537 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:11:53,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-13 19:11:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:56,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:11:56,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:11:56,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:11:56,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:11:56,592 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:56,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:11:56,682 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:56,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:11:56,786 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:11:56,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:11:56,853 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:11:56,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:11:56,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:56,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:57,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:57,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:11:57,065 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:11:57,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:11:57,136 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:11:57,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:11:57,408 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:11:57,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:11:57,481 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:11:57,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:11:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:11:57,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342675088] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:11:57,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:11:57,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-13 19:11:57,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315288120] [2021-10-13 19:11:57,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:11:57,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:57,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:11:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:11:57,522 INFO L87 Difference]: Start difference. First operand 3810 states and 16096 transitions. Second operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:59,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:59,578 INFO L93 Difference]: Finished difference Result 6574 states and 26896 transitions. [2021-10-13 19:11:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:11:59,579 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:11:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:59,609 INFO L225 Difference]: With dead ends: 6574 [2021-10-13 19:11:59,610 INFO L226 Difference]: Without dead ends: 6574 [2021-10-13 19:11:59,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1513.5ms TimeCoverageRelationStatistics Valid=315, Invalid=1407, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:11:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6574 states. [2021-10-13 19:11:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6574 to 4629. [2021-10-13 19:11:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4378 states have (on average 4.7457743261763365) internal successors, (20777), 4628 states have internal predecessors, (20777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 20777 transitions. [2021-10-13 19:11:59,753 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 20777 transitions. Word has length 28 [2021-10-13 19:11:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 4629 states and 20777 transitions. [2021-10-13 19:11:59,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:59,754 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 20777 transitions. [2021-10-13 19:11:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:11:59,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:59,754 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:59,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-10-13 19:11:59,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,57 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:11:59,958 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:11:59,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:59,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1162461343, now seen corresponding path program 1 times [2021-10-13 19:11:59,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:59,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531358415] [2021-10-13 19:11:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:59,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:12:00,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:00,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531358415] [2021-10-13 19:12:00,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531358415] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:00,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574240700] [2021-10-13 19:12:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:00,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:00,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:12:00,786 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:12:00,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-13 19:12:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:03,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:12:03,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:12:03,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:12:03,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:12:04,070 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:04,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:04,148 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:04,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:04,247 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:04,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:04,324 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:12:04,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:12:04,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:12:04,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:12:04,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:12:04,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:12:04,527 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:12:04,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:12:04,603 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:04,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:12:04,837 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:04,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:12:04,948 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:04,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:12:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:12:04,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574240700] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:04,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:12:04,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-13 19:12:04,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370288968] [2021-10-13 19:12:04,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:12:04,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:04,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:12:04,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:12:04,986 INFO L87 Difference]: Start difference. First operand 4629 states and 20777 transitions. Second operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:06,619 INFO L93 Difference]: Finished difference Result 6301 states and 25517 transitions. [2021-10-13 19:12:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:12:06,619 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:12:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:06,650 INFO L225 Difference]: With dead ends: 6301 [2021-10-13 19:12:06,650 INFO L226 Difference]: Without dead ends: 6301 [2021-10-13 19:12:06,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1380.9ms TimeCoverageRelationStatistics Valid=315, Invalid=1407, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:12:06,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2021-10-13 19:12:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 4629. [2021-10-13 19:12:06,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4378 states have (on average 4.621059844677935) internal successors, (20231), 4628 states have internal predecessors, (20231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:06,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 20231 transitions. [2021-10-13 19:12:06,781 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 20231 transitions. Word has length 28 [2021-10-13 19:12:06,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:06,781 INFO L470 AbstractCegarLoop]: Abstraction has 4629 states and 20231 transitions. [2021-10-13 19:12:06,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 20231 transitions. [2021-10-13 19:12:06,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:12:06,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:06,783 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:06,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-10-13 19:12:06,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-13 19:12:06,996 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:12:06,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:06,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1359526551, now seen corresponding path program 1 times [2021-10-13 19:12:06,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:06,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692553235] [2021-10-13 19:12:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:06,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:12:07,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:07,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692553235] [2021-10-13 19:12:07,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692553235] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:07,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017299233] [2021-10-13 19:12:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:07,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:07,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:12:07,992 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:12:07,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-13 19:12:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:10,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-13 19:12:10,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:12:10,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:10,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:10,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:10,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:10,979 INFO L354 Elim1Store]: treesize reduction 332, result has 11.9 percent of original size [2021-10-13 19:12:10,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 92 [2021-10-13 19:12:12,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:12:13,252 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:13,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:13,387 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:13,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:14,312 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:14,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:14,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:14,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:14,591 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:12:14,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-13 19:12:16,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:17,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:18,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:19,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:20,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:20,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:20,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:20,663 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:12:20,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 100 treesize of output 166 [2021-10-13 19:12:20,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:21,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:21,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:21,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:21,192 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:12:21,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:12:21,270 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:21,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:21,519 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:21,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:21,606 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:21,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:21,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:12:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:12:21,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017299233] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:21,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:12:21,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 30 [2021-10-13 19:12:21,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651959128] [2021-10-13 19:12:21,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:12:21,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:12:21,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=855, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:12:21,652 INFO L87 Difference]: Start difference. First operand 4629 states and 20231 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:26,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:26,090 INFO L93 Difference]: Finished difference Result 12039 states and 48804 transitions. [2021-10-13 19:12:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:12:26,091 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:12:26,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:26,184 INFO L225 Difference]: With dead ends: 12039 [2021-10-13 19:12:26,184 INFO L226 Difference]: Without dead ends: 12039 [2021-10-13 19:12:26,185 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2672.6ms TimeCoverageRelationStatistics Valid=404, Invalid=1948, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 19:12:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12039 states. [2021-10-13 19:12:26,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12039 to 4629. [2021-10-13 19:12:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4378 states have (on average 4.558702603928735) internal successors, (19958), 4628 states have internal predecessors, (19958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:26,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 19958 transitions. [2021-10-13 19:12:26,451 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 19958 transitions. Word has length 28 [2021-10-13 19:12:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:26,452 INFO L470 AbstractCegarLoop]: Abstraction has 4629 states and 19958 transitions. [2021-10-13 19:12:26,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:26,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 19958 transitions. [2021-10-13 19:12:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:12:26,453 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:26,453 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:26,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-10-13 19:12:26,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,59 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:26,654 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:12:26,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:26,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1359526553, now seen corresponding path program 1 times [2021-10-13 19:12:26,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:26,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46684726] [2021-10-13 19:12:26,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:26,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:12:27,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:27,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46684726] [2021-10-13 19:12:27,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46684726] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:27,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776113663] [2021-10-13 19:12:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:27,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:27,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:12:27,716 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:12:27,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-13 19:12:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:30,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 19:12:30,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:12:30,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:30,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:30,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:30,955 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:12:30,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:12:31,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:12:32,480 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:32,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:12:32,647 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:32,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:12:33,351 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:33,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:12:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:33,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:33,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:33,634 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:12:33,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:12:35,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:35,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:35,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:36,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:37,306 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:12:37,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 92 [2021-10-13 19:12:39,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:39,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:39,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:12:39,237 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:12:39,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:12:39,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:39,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:39,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:39,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:39,830 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:12:39,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 19:12:39,924 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:39,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:40,181 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:40,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:40,263 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:40,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:40,361 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:12:40,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776113663] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:40,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:12:40,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2021-10-13 19:12:40,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75180817] [2021-10-13 19:12:40,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:12:40,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:40,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:12:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=974, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:12:40,362 INFO L87 Difference]: Start difference. First operand 4629 states and 19958 transitions. Second operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:44,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:44,939 INFO L93 Difference]: Finished difference Result 11523 states and 46684 transitions. [2021-10-13 19:12:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:12:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:12:44,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:45,002 INFO L225 Difference]: With dead ends: 11523 [2021-10-13 19:12:45,002 INFO L226 Difference]: Without dead ends: 11523 [2021-10-13 19:12:45,002 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 3197.0ms TimeCoverageRelationStatistics Valid=481, Invalid=2275, Unknown=0, NotChecked=0, Total=2756 [2021-10-13 19:12:45,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2021-10-13 19:12:45,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 4356. [2021-10-13 19:12:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 4105 states have (on average 4.525943970767357) internal successors, (18579), 4355 states have internal predecessors, (18579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:45,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 18579 transitions. [2021-10-13 19:12:45,294 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 18579 transitions. Word has length 28 [2021-10-13 19:12:45,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:45,294 INFO L470 AbstractCegarLoop]: Abstraction has 4356 states and 18579 transitions. [2021-10-13 19:12:45,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 18579 transitions. [2021-10-13 19:12:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:12:45,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:45,295 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:45,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-10-13 19:12:45,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,60 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:45,509 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:12:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:45,510 INFO L82 PathProgramCache]: Analyzing trace with hash 700139627, now seen corresponding path program 1 times [2021-10-13 19:12:45,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:45,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949612866] [2021-10-13 19:12:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:45,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-13 19:12:46,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:46,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949612866] [2021-10-13 19:12:46,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949612866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:46,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300370283] [2021-10-13 19:12:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:46,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:46,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:12:46,522 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:12:46,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-13 19:12:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:49,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:12:49,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:12:49,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:12:50,038 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:50,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:50,126 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:50,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:50,199 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:50,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:50,285 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:50,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:50,364 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:50,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:50,436 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:50,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:12:50,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300370283] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:50,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:12:50,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2021-10-13 19:12:50,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694592490] [2021-10-13 19:12:50,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:12:50,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:50,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:12:50,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:12:50,516 INFO L87 Difference]: Start difference. First operand 4356 states and 18579 transitions. Second operand has 27 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:51,908 INFO L93 Difference]: Finished difference Result 6612 states and 26144 transitions. [2021-10-13 19:12:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:12:51,909 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:12:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:51,936 INFO L225 Difference]: With dead ends: 6612 [2021-10-13 19:12:51,936 INFO L226 Difference]: Without dead ends: 6612 [2021-10-13 19:12:51,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1188.3ms TimeCoverageRelationStatistics Valid=222, Invalid=968, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:12:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2021-10-13 19:12:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 4984. [2021-10-13 19:12:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 4733 states have (on average 4.51785336995563) internal successors, (21383), 4983 states have internal predecessors, (21383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 21383 transitions. [2021-10-13 19:12:52,204 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 21383 transitions. Word has length 28 [2021-10-13 19:12:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:52,204 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 21383 transitions. [2021-10-13 19:12:52,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 21383 transitions. [2021-10-13 19:12:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:12:52,205 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:52,205 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:52,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-10-13 19:12:52,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,61 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:52,415 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:12:52,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:52,416 INFO L82 PathProgramCache]: Analyzing trace with hash 700139713, now seen corresponding path program 1 times [2021-10-13 19:12:52,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:52,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599240804] [2021-10-13 19:12:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:52,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:12:54,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:54,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599240804] [2021-10-13 19:12:54,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599240804] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:54,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557800980] [2021-10-13 19:12:54,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:54,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:12:54,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:12:54,019 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:12:54,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-13 19:12:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:57,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:12:57,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:12:57,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:12:57,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:12:57,460 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:57,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:57,577 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:57,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:12:57,691 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:12:57,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:12:57,783 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:12:57,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:12:57,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:57,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:57,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:58,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:12:58,136 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:12:58,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:12:58,224 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:58,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:58,324 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:58,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:58,403 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:12:58,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:12:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:12:58,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557800980] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:12:58,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:12:58,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 15] total 37 [2021-10-13 19:12:58,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020571847] [2021-10-13 19:12:58,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-13 19:12:58,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-13 19:12:58,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1322, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:12:58,554 INFO L87 Difference]: Start difference. First operand 4984 states and 21383 transitions. Second operand has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:02,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:02,138 INFO L93 Difference]: Finished difference Result 6612 states and 25830 transitions. [2021-10-13 19:13:02,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:13:02,139 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:13:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:02,170 INFO L225 Difference]: With dead ends: 6612 [2021-10-13 19:13:02,170 INFO L226 Difference]: Without dead ends: 6612 [2021-10-13 19:13:02,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 3275.8ms TimeCoverageRelationStatistics Valid=496, Invalid=2584, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:13:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2021-10-13 19:13:02,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 4984. [2021-10-13 19:13:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 4733 states have (on average 4.451510669765477) internal successors, (21069), 4983 states have internal predecessors, (21069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 21069 transitions. [2021-10-13 19:13:02,359 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 21069 transitions. Word has length 28 [2021-10-13 19:13:02,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:02,359 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 21069 transitions. [2021-10-13 19:13:02,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 21069 transitions. [2021-10-13 19:13:02,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:13:02,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:02,361 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:02,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-10-13 19:13:02,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-10-13 19:13:02,562 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:13:02,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:02,563 INFO L82 PathProgramCache]: Analyzing trace with hash 700139715, now seen corresponding path program 1 times [2021-10-13 19:13:02,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:02,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139892170] [2021-10-13 19:13:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:02,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:13:04,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:04,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139892170] [2021-10-13 19:13:04,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139892170] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:04,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552950048] [2021-10-13 19:13:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:04,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:13:04,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:13:04,057 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:13:04,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-13 19:13:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:07,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:13:07,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:13:07,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:13:07,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:13:07,539 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:07,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:13:07,655 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:07,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:13:07,763 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:07,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:13:07,858 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:13:07,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:13:07,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:07,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:07,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:08,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:08,153 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:13:08,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:13:08,235 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:08,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:08,323 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:08,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:08,406 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:08,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:08,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:13:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 19:13:08,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552950048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:08,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:13:08,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 15] total 36 [2021-10-13 19:13:08,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887580568] [2021-10-13 19:13:08,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-13 19:13:08,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-13 19:13:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1236, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:13:08,511 INFO L87 Difference]: Start difference. First operand 4984 states and 21069 transitions. Second operand has 38 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:11,558 INFO L93 Difference]: Finished difference Result 5984 states and 23650 transitions. [2021-10-13 19:13:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:13:11,562 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:13:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:11,589 INFO L225 Difference]: With dead ends: 5984 [2021-10-13 19:13:11,589 INFO L226 Difference]: Without dead ends: 5984 [2021-10-13 19:13:11,590 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2931.5ms TimeCoverageRelationStatistics Valid=496, Invalid=2366, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 19:13:11,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-10-13 19:13:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 4670. [2021-10-13 19:13:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4419 states have (on average 4.343516632722335) internal successors, (19194), 4669 states have internal predecessors, (19194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:11,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 19194 transitions. [2021-10-13 19:13:11,784 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 19194 transitions. Word has length 28 [2021-10-13 19:13:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:11,784 INFO L470 AbstractCegarLoop]: Abstraction has 4670 states and 19194 transitions. [2021-10-13 19:13:11,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 19194 transitions. [2021-10-13 19:13:11,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:13:11,785 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:11,785 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:11,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-13 19:13:11,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-10-13 19:13:11,998 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:13:11,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:12,000 INFO L82 PathProgramCache]: Analyzing trace with hash 700139717, now seen corresponding path program 1 times [2021-10-13 19:13:12,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:12,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609688073] [2021-10-13 19:13:12,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:12,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:13:12,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:12,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609688073] [2021-10-13 19:13:12,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609688073] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:12,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557866437] [2021-10-13 19:13:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:12,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:13:12,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:13:12,520 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:13:12,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-13 19:13:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:15,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:13:15,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:13:15,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:13:15,937 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:15,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:13:16,156 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:16,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:13:16,227 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:16,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:13:16,299 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:13:16,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:13:16,371 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:13:16,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:13:16,435 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:13:16,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:13:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:13:16,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557866437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:16,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:13:16,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-13 19:13:16,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500740317] [2021-10-13 19:13:16,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:13:16,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:16,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:13:16,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:13:16,509 INFO L87 Difference]: Start difference. First operand 4670 states and 19194 transitions. Second operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:17,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:17,824 INFO L93 Difference]: Finished difference Result 5356 states and 20842 transitions. [2021-10-13 19:13:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:13:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:13:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:17,846 INFO L225 Difference]: With dead ends: 5356 [2021-10-13 19:13:17,847 INFO L226 Difference]: Without dead ends: 5356 [2021-10-13 19:13:17,847 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 959.9ms TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:13:17,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2021-10-13 19:13:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 4670. [2021-10-13 19:13:17,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4419 states have (on average 4.272459832541299) internal successors, (18880), 4669 states have internal predecessors, (18880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 18880 transitions. [2021-10-13 19:13:17,979 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 18880 transitions. Word has length 28 [2021-10-13 19:13:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:17,979 INFO L470 AbstractCegarLoop]: Abstraction has 4670 states and 18880 transitions. [2021-10-13 19:13:17,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 18880 transitions. [2021-10-13 19:13:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:13:17,981 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:17,981 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:18,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-13 19:13:18,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,64 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:13:18,190 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:13:18,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:18,191 INFO L82 PathProgramCache]: Analyzing trace with hash 289243621, now seen corresponding path program 2 times [2021-10-13 19:13:18,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:18,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175960174] [2021-10-13 19:13:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:18,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:13:20,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:20,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175960174] [2021-10-13 19:13:20,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175960174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:20,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018434128] [2021-10-13 19:13:20,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:13:20,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:13:20,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:13:20,138 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:13:20,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-13 19:13:23,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:13:23,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:13:23,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-13 19:13:23,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:13:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:23,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:23,565 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:13:23,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:13:24,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:13:25,629 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:25,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:13:25,792 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:25,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:26,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:26,531 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:13:26,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:13:27,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:28,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:29,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:31,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:31,370 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:13:31,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-10-13 19:13:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:32,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:33,043 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:13:33,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:13:33,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:33,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:33,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:33,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:13:33,595 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:13:33,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:13:33,698 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:33,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:13:33,803 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:33,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:13:33,888 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:33,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:13:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:13:34,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018434128] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:34,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:13:34,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 36 [2021-10-13 19:13:34,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938622102] [2021-10-13 19:13:34,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-13 19:13:34,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-13 19:13:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1264, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:13:34,141 INFO L87 Difference]: Start difference. First operand 4670 states and 18880 transitions. Second operand has 38 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:43,278 INFO L93 Difference]: Finished difference Result 15206 states and 59156 transitions. [2021-10-13 19:13:43,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:13:43,279 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:13:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:43,348 INFO L225 Difference]: With dead ends: 15206 [2021-10-13 19:13:43,348 INFO L226 Difference]: Without dead ends: 15206 [2021-10-13 19:13:43,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 6777.6ms TimeCoverageRelationStatistics Valid=564, Invalid=3218, Unknown=0, NotChecked=0, Total=3782 [2021-10-13 19:13:43,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15206 states. [2021-10-13 19:13:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15206 to 5092. [2021-10-13 19:13:43,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5092 states, 4841 states have (on average 4.590373889692212) internal successors, (22222), 5091 states have internal predecessors, (22222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5092 states to 5092 states and 22222 transitions. [2021-10-13 19:13:43,579 INFO L78 Accepts]: Start accepts. Automaton has 5092 states and 22222 transitions. Word has length 28 [2021-10-13 19:13:43,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:43,579 INFO L470 AbstractCegarLoop]: Abstraction has 5092 states and 22222 transitions. [2021-10-13 19:13:43,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:43,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5092 states and 22222 transitions. [2021-10-13 19:13:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:13:43,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:43,580 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:43,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2021-10-13 19:13:43,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-13 19:13:43,781 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:13:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash 289243622, now seen corresponding path program 2 times [2021-10-13 19:13:43,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:43,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764376535] [2021-10-13 19:13:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:43,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:13:44,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:44,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764376535] [2021-10-13 19:13:44,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764376535] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:44,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795953387] [2021-10-13 19:13:44,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:13:44,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:13:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:13:44,613 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:13:44,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-13 19:13:48,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:13:48,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:13:48,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-13 19:13:48,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:13:48,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:48,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:48,208 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:13:48,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:13:49,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:13:50,118 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:50,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:13:50,258 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:50,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:13:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:50,927 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:13:50,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:13:52,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:53,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:54,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:54,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:54,940 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:13:54,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 92 [2021-10-13 19:13:56,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:56,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:56,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:13:57,061 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:13:57,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:13:57,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:57,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:57,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:57,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:13:57,622 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:13:57,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 19:13:57,712 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:57,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:57,813 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:57,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:57,897 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:13:57,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:13:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:13:58,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795953387] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:13:58,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:13:58,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2021-10-13 19:13:58,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106964111] [2021-10-13 19:13:58,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:13:58,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:58,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:13:58,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:13:58,128 INFO L87 Difference]: Start difference. First operand 5092 states and 22222 transitions. Second operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:03,289 INFO L93 Difference]: Finished difference Result 14351 states and 55824 transitions. [2021-10-13 19:14:03,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:14:03,290 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:14:03,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:03,360 INFO L225 Difference]: With dead ends: 14351 [2021-10-13 19:14:03,360 INFO L226 Difference]: Without dead ends: 14351 [2021-10-13 19:14:03,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 4254.2ms TimeCoverageRelationStatistics Valid=501, Invalid=2469, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 19:14:03,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14351 states. [2021-10-13 19:14:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14351 to 5092. [2021-10-13 19:14:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5092 states, 4841 states have (on average 4.5032018178062385) internal successors, (21800), 5091 states have internal predecessors, (21800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5092 states to 5092 states and 21800 transitions. [2021-10-13 19:14:03,579 INFO L78 Accepts]: Start accepts. Automaton has 5092 states and 21800 transitions. Word has length 28 [2021-10-13 19:14:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:03,579 INFO L470 AbstractCegarLoop]: Abstraction has 5092 states and 21800 transitions. [2021-10-13 19:14:03,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5092 states and 21800 transitions. [2021-10-13 19:14:03,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:14:03,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:03,580 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:03,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-10-13 19:14:03,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,66 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:03,781 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:14:03,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:03,782 INFO L82 PathProgramCache]: Analyzing trace with hash 289243526, now seen corresponding path program 2 times [2021-10-13 19:14:03,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:03,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804023393] [2021-10-13 19:14:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:03,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 19:14:04,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:04,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804023393] [2021-10-13 19:14:04,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804023393] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:04,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146393225] [2021-10-13 19:14:04,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:14:04,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:14:04,627 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:14:04,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-13 19:14:08,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:14:08,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:14:08,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:14:08,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:14:08,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:14:08,496 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:08,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:14:08,572 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:08,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:14:08,644 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:08,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:14:08,725 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:08,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:14:08,793 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:08,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:14:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:14:08,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146393225] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:08,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:14:08,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 31 [2021-10-13 19:14:08,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837273788] [2021-10-13 19:14:08,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:14:08,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:08,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:14:08,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:14:08,977 INFO L87 Difference]: Start difference. First operand 5092 states and 21800 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:11,391 INFO L93 Difference]: Finished difference Result 6762 states and 26261 transitions. [2021-10-13 19:14:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:14:11,392 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:14:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:11,424 INFO L225 Difference]: With dead ends: 6762 [2021-10-13 19:14:11,425 INFO L226 Difference]: Without dead ends: 6762 [2021-10-13 19:14:11,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1974.8ms TimeCoverageRelationStatistics Valid=281, Invalid=1611, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:14:11,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2021-10-13 19:14:11,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 5092. [2021-10-13 19:14:11,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5092 states, 4841 states have (on average 4.416029745920264) internal successors, (21378), 5091 states have internal predecessors, (21378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5092 states to 5092 states and 21378 transitions. [2021-10-13 19:14:11,748 INFO L78 Accepts]: Start accepts. Automaton has 5092 states and 21378 transitions. Word has length 28 [2021-10-13 19:14:11,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:11,748 INFO L470 AbstractCegarLoop]: Abstraction has 5092 states and 21378 transitions. [2021-10-13 19:14:11,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5092 states and 21378 transitions. [2021-10-13 19:14:11,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 19:14:11,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:11,749 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:11,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-10-13 19:14:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,67 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:11,950 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:14:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:11,951 INFO L82 PathProgramCache]: Analyzing trace with hash 289243618, now seen corresponding path program 2 times [2021-10-13 19:14:11,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:11,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599538297] [2021-10-13 19:14:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:11,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 19:14:12,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:12,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599538297] [2021-10-13 19:14:12,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599538297] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:12,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532049019] [2021-10-13 19:14:12,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:14:12,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:12,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:14:12,826 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:14:12,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-13 19:14:16,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:14:16,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:14:16,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:14:16,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:14:16,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:14:16,664 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:16,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:14:16,753 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:16,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:14:16,963 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:16,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:14:17,050 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:17,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:14:17,114 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:14:17,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:14:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:14:17,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532049019] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:17,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:14:17,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 31 [2021-10-13 19:14:17,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089442235] [2021-10-13 19:14:17,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:14:17,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:17,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:14:17,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:14:17,302 INFO L87 Difference]: Start difference. First operand 5092 states and 21378 transitions. Second operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:19,726 INFO L93 Difference]: Finished difference Result 6340 states and 24601 transitions. [2021-10-13 19:14:19,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:14:19,726 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 19:14:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:19,754 INFO L225 Difference]: With dead ends: 6340 [2021-10-13 19:14:19,755 INFO L226 Difference]: Without dead ends: 6340 [2021-10-13 19:14:19,755 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 2160.5ms TimeCoverageRelationStatistics Valid=281, Invalid=1611, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:14:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2021-10-13 19:14:19,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 5092. [2021-10-13 19:14:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5092 states, 4841 states have (on average 4.328857674034291) internal successors, (20956), 5091 states have internal predecessors, (20956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:19,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5092 states to 5092 states and 20956 transitions. [2021-10-13 19:14:19,900 INFO L78 Accepts]: Start accepts. Automaton has 5092 states and 20956 transitions. Word has length 28 [2021-10-13 19:14:19,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:19,900 INFO L470 AbstractCegarLoop]: Abstraction has 5092 states and 20956 transitions. [2021-10-13 19:14:19,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5092 states and 20956 transitions. [2021-10-13 19:14:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 19:14:19,901 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:19,901 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:19,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-10-13 19:14:20,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-13 19:14:20,116 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:14:20,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:20,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1822375696, now seen corresponding path program 3 times [2021-10-13 19:14:20,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:20,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140712066] [2021-10-13 19:14:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:20,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:14:21,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:21,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140712066] [2021-10-13 19:14:21,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140712066] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:21,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456563745] [2021-10-13 19:14:21,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:14:21,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:21,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:14:21,014 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:14:21,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-13 19:14:24,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:14:24,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:14:24,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 19:14:24,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:14:24,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:14:24,785 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:14:24,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:14:27,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:14:27,314 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:14:27,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:14:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:14:28,082 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:14:28,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:14:29,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:31,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:32,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:33,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:34,352 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:14:34,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 109 [2021-10-13 19:14:37,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:14:37,476 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:14:37,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:14:37,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:37,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:37,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:37,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:14:37,898 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:14:37,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2021-10-13 19:14:37,983 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:14:37,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:14:38,392 INFO L354 Elim1Store]: treesize reduction 12, result has 20.0 percent of original size [2021-10-13 19:14:38,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2021-10-13 19:14:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 19:14:38,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456563745] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:38,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:14:38,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 29 [2021-10-13 19:14:38,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029737660] [2021-10-13 19:14:38,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:14:38,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:38,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:14:38,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:14:38,398 INFO L87 Difference]: Start difference. First operand 5092 states and 20956 transitions. Second operand has 31 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:43,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:43,317 INFO L93 Difference]: Finished difference Result 6139 states and 25586 transitions. [2021-10-13 19:14:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:14:43,317 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 19:14:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:43,343 INFO L225 Difference]: With dead ends: 6139 [2021-10-13 19:14:43,343 INFO L226 Difference]: Without dead ends: 6139 [2021-10-13 19:14:43,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3524.1ms TimeCoverageRelationStatistics Valid=503, Invalid=2577, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:14:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-10-13 19:14:43,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 5431. [2021-10-13 19:14:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5180 states have (on average 4.557528957528958) internal successors, (23608), 5430 states have internal predecessors, (23608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 23608 transitions. [2021-10-13 19:14:43,482 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 23608 transitions. Word has length 29 [2021-10-13 19:14:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:43,482 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 23608 transitions. [2021-10-13 19:14:43,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 23608 transitions. [2021-10-13 19:14:43,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 19:14:43,484 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:43,484 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:43,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-10-13 19:14:43,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,69 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:43,699 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:14:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:43,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1822375698, now seen corresponding path program 3 times [2021-10-13 19:14:43,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:43,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641702617] [2021-10-13 19:14:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:43,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:14:44,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:44,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641702617] [2021-10-13 19:14:44,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641702617] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:14:44,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349098554] [2021-10-13 19:14:44,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:14:44,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:14:44,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:14:44,397 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:14:44,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-13 19:14:48,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:14:48,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:14:48,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 19:14:48,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:14:48,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:14:48,275 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:14:48,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:14:50,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:14:51,786 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:14:51,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:14:51,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:14:52,077 INFO L354 Elim1Store]: treesize reduction 286, result has 18.3 percent of original size [2021-10-13 19:14:52,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:14:54,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:14:54,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:14:56,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:14:57,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:14:58,628 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:14:58,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 111 [2021-10-13 19:15:00,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:00,758 INFO L354 Elim1Store]: treesize reduction 196, result has 30.2 percent of original size [2021-10-13 19:15:00,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:15:01,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:01,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:01,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:01,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:01,192 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:15:01,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-10-13 19:15:01,277 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:01,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:15:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 19:15:01,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349098554] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:01,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:15:01,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 30 [2021-10-13 19:15:01,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839732009] [2021-10-13 19:15:01,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:15:01,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:01,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:15:01,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:15:01,817 INFO L87 Difference]: Start difference. First operand 5431 states and 23608 transitions. Second operand has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:06,671 INFO L93 Difference]: Finished difference Result 6137 states and 25245 transitions. [2021-10-13 19:15:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:15:06,672 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 19:15:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:06,701 INFO L225 Difference]: With dead ends: 6137 [2021-10-13 19:15:06,701 INFO L226 Difference]: Without dead ends: 6137 [2021-10-13 19:15:06,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 3964.3ms TimeCoverageRelationStatistics Valid=508, Invalid=2684, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 19:15:06,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6137 states. [2021-10-13 19:15:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6137 to 5109. [2021-10-13 19:15:06,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 4858 states have (on average 4.3338822560724575) internal successors, (21054), 5108 states have internal predecessors, (21054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 21054 transitions. [2021-10-13 19:15:06,850 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 21054 transitions. Word has length 29 [2021-10-13 19:15:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:06,850 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 21054 transitions. [2021-10-13 19:15:06,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 21054 transitions. [2021-10-13 19:15:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 19:15:06,852 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:06,852 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:06,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-10-13 19:15:07,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,70 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:15:07,066 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:15:07,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:07,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1822375683, now seen corresponding path program 3 times [2021-10-13 19:15:07,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:07,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678994450] [2021-10-13 19:15:07,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:07,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:15:07,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:07,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678994450] [2021-10-13 19:15:07,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678994450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:07,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91723336] [2021-10-13 19:15:07,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:15:07,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:15:07,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:15:07,891 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:15:07,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-13 19:15:11,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:15:11,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:15:11,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:15:11,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:15:11,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:15:11,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:15:11,960 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:11,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:15:12,057 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:15:12,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:15:12,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:12,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:12,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:12,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:12,241 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:15:12,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 39 [2021-10-13 19:15:12,323 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:12,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:15:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-13 19:15:12,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91723336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:12,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:15:12,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 30 [2021-10-13 19:15:12,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104517028] [2021-10-13 19:15:12,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:15:12,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:12,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:15:12,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:15:12,729 INFO L87 Difference]: Start difference. First operand 5109 states and 21054 transitions. Second operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:16,368 INFO L93 Difference]: Finished difference Result 5788 states and 22976 transitions. [2021-10-13 19:15:16,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:15:16,368 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 19:15:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:16,392 INFO L225 Difference]: With dead ends: 5788 [2021-10-13 19:15:16,392 INFO L226 Difference]: Without dead ends: 5788 [2021-10-13 19:15:16,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2083.7ms TimeCoverageRelationStatistics Valid=325, Invalid=2125, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 19:15:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-10-13 19:15:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5109. [2021-10-13 19:15:16,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 4858 states have (on average 4.333676410045286) internal successors, (21053), 5108 states have internal predecessors, (21053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 21053 transitions. [2021-10-13 19:15:16,539 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 21053 transitions. Word has length 29 [2021-10-13 19:15:16,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:16,539 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 21053 transitions. [2021-10-13 19:15:16,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 21053 transitions. [2021-10-13 19:15:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 19:15:16,540 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:16,540 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:16,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-10-13 19:15:16,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,71 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:15:16,745 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:15:16,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:16,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1822375628, now seen corresponding path program 3 times [2021-10-13 19:15:16,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:16,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560226759] [2021-10-13 19:15:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:16,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:15:17,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:17,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560226759] [2021-10-13 19:15:17,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560226759] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:17,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171539908] [2021-10-13 19:15:17,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:15:17,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:15:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:15:17,550 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:15:17,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-13 19:15:21,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:15:21,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:15:21,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:15:21,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:15:21,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 19:15:21,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:15:21,703 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:21,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:21,804 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 19:15:21,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-13 19:15:21,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:21,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:21,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:21,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:21,988 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:15:21,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:15:22,080 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:22,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:15:22,485 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-13 19:15:22,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171539908] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:22,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:15:22,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 30 [2021-10-13 19:15:22,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154681982] [2021-10-13 19:15:22,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:15:22,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:15:22,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:15:22,488 INFO L87 Difference]: Start difference. First operand 5109 states and 21053 transitions. Second operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:25,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:25,502 INFO L93 Difference]: Finished difference Result 5787 states and 22974 transitions. [2021-10-13 19:15:25,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:15:25,503 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 19:15:25,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:25,526 INFO L225 Difference]: With dead ends: 5787 [2021-10-13 19:15:25,526 INFO L226 Difference]: Without dead ends: 5787 [2021-10-13 19:15:25,526 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 2620.5ms TimeCoverageRelationStatistics Valid=421, Invalid=2231, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 19:15:25,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2021-10-13 19:15:25,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5109. [2021-10-13 19:15:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 4858 states have (on average 4.333470564018114) internal successors, (21052), 5108 states have internal predecessors, (21052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 21052 transitions. [2021-10-13 19:15:25,695 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 21052 transitions. Word has length 29 [2021-10-13 19:15:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 21052 transitions. [2021-10-13 19:15:25,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 21052 transitions. [2021-10-13 19:15:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 19:15:25,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:25,697 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:25,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-10-13 19:15:25,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,72 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:15:25,905 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2021-10-13 19:15:25,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:25,906 INFO L82 PathProgramCache]: Analyzing trace with hash 376619590, now seen corresponding path program 3 times [2021-10-13 19:15:25,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:25,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735795167] [2021-10-13 19:15:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:25,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:15:27,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:27,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735795167] [2021-10-13 19:15:27,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735795167] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:27,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200304703] [2021-10-13 19:15:27,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:15:27,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:15:27,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:15:27,964 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:15:27,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-10-13 19:15:32,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:15:32,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:15:32,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-13 19:15:32,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:15:32,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:32,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:32,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:32,181 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:15:32,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:15:33,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:15:34,045 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:34,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:15:34,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:34,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:34,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:34,668 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-13 19:15:34,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 66 treesize of output 112 [2021-10-13 19:15:36,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:36,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:37,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:37,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:37,809 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:15:37,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 99 [2021-10-13 19:15:39,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:39,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:39,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:15:39,485 INFO L354 Elim1Store]: treesize reduction 180, result has 32.1 percent of original size [2021-10-13 19:15:39,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 158 [2021-10-13 19:15:39,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:39,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:39,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:39,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:15:40,002 INFO L354 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2021-10-13 19:15:40,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 49 [2021-10-13 19:15:40,113 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:40,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:15:40,241 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:40,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:15:40,355 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-13 19:15:40,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:15:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 19:15:40,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200304703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:15:40,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:15:40,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14] total 35 [2021-10-13 19:15:40,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431320791] [2021-10-13 19:15:40,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-13 19:15:40,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-13 19:15:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1188, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:15:40,807 INFO L87 Difference]: Start difference. First operand 5109 states and 21052 transitions. Second operand has 37 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-10-13 19:15:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-13 19:15:52,178 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,223 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 19:15:52,223 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 19:15:52,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2021-10-13 19:15:52,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-10-13 19:15:52,395 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). [2021-10-13 19:15:52,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,401 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,402 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,403 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,404 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,404 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,404 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,404 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,404 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:15:52,413 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:15:52,413 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:15:52,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:15:52 BasicIcfg [2021-10-13 19:15:52,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:15:52,416 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-13 19:15:52,417 INFO L168 Benchmark]: Toolchain (without parser) took 738142.46 ms. Allocated memory was 160.4 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 134.6 MB in the beginning and 248.4 MB in the end (delta: -113.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2021-10-13 19:15:52,417 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:15:52,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.59 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 123.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:15:52,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.51 ms. Allocated memory is still 160.4 MB. Free memory was 122.8 MB in the beginning and 120.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:15:52,418 INFO L168 Benchmark]: Boogie Preprocessor took 54.62 ms. Allocated memory is still 160.4 MB. Free memory was 120.0 MB in the beginning and 118.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:15:52,418 INFO L168 Benchmark]: RCFGBuilder took 1108.44 ms. Allocated memory is still 160.4 MB. Free memory was 117.9 MB in the beginning and 131.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:15:52,418 INFO L168 Benchmark]: TraceAbstraction took 736397.92 ms. Allocated memory was 160.4 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 130.8 MB in the beginning and 248.4 MB in the end (delta: -117.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2021-10-13 19:15:52,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 477.59 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 123.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 80.51 ms. Allocated memory is still 160.4 MB. Free memory was 122.8 MB in the beginning and 120.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.62 ms. Allocated memory is still 160.4 MB. Free memory was 120.0 MB in the beginning and 118.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1108.44 ms. Allocated memory is still 160.4 MB. Free memory was 117.9 MB in the beginning and 131.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 736397.92 ms. Allocated memory was 160.4 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 130.8 MB in the beginning and 248.4 MB in the end (delta: -117.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27734.3ms, 385 PlacesBefore, 67 PlacesAfterwards, 412 TransitionsBefore, 63 TransitionsAfterwards, 40128 CoEnabledTransitionPairs, 8 FixpointIterations, 149 TrivialSequentialCompositions, 268 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 38 ConcurrentYvCompositions, 31 ChoiceCompositions, 518 TotalNumberOfCompositions, 40870 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36384, positive: 36237, positive conditional: 0, positive unconditional: 36237, negative: 147, negative conditional: 0, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26941, positive: 26899, positive conditional: 0, positive unconditional: 26899, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26941, positive: 26899, positive conditional: 0, positive unconditional: 26899, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 208, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 208, negative conditional: 0, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36384, positive: 9338, positive conditional: 0, positive unconditional: 9338, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 26941, unknown conditional: 0, unknown unconditional: 26941] , Statistics on independence cache: Total cache size (in pairs): 294, Positive cache size: 276, Positive conditional cache size: 0, Positive unconditional cache size: 276, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5109states) and FLOYD_HOARE automaton (currently 31 states, 37 states before enhancement),while ReachableStatesComputation was computing reachable states (9090 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 586 locations, 57 error locations. Started 1 CEGAR loops. OverallTime: 736036.0ms, OverallIterations: 75, TraceHistogramMax: 5, EmptinessCheckTime: 93.1ms, AutomataDifference: 181863.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27953.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2634 SDtfs, 22546 SDslu, 17796 SDs, 0 SdLazy, 58177 SolverSat, 7594 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 78469.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4043 GetRequests, 1183 SyntacticMatches, 58 SemanticMatches, 2802 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27496 ImplicationChecksByTransitivity, 144460.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5431occurred in iteration=71, InterpolantAutomatonStates: 1186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8913.7ms AutomataMinimizationTime, 74 MinimizatonAttempts, 86395 StatesRemovedByMinimization, 68 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1371.9ms SsaConstructionTime, 9381.6ms SatisfiabilityAnalysisTime, 368897.6ms InterpolantComputationTime, 3645 NumberOfCodeBlocks, 3643 NumberOfCodeBlocksAsserted, 181 NumberOfCheckSat, 3498 ConstructedInterpolants, 393 QuantifiedInterpolants, 98131 SizeOfPredicates, 886 NumberOfNonLiveVariables, 22488 ConjunctsInSsa, 2776 ConjunctsInUnsatCore, 147 InterpolantComputations, 5 PerfectInterpolantSequences, 3188/6389 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown