/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/popl20-bad-dot-product.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:20:25,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:20:25,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:20:25,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:20:25,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:20:25,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:20:25,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:20:25,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:20:25,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:20:25,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:20:25,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:20:25,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:20:25,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:20:25,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:20:25,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:20:25,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:20:25,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:20:25,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:20:25,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:20:25,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:20:25,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:20:25,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:20:25,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:20:25,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:20:25,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:20:25,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:20:25,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:20:25,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:20:25,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:20:25,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:20:25,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:20:25,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:20:25,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:20:25,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:20:25,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:20:25,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:20:25,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:20:25,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:20:25,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:20:25,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:20:25,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:20:25,475 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 19:20:25,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:20:25,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:20:25,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:20:25,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:20:25,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:20:25,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:20:25,537 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:20:25,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:20:25,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:20:25,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:20:25,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:20:25,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:20:25,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:20:25,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:20:25,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:20:25,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:20:25,540 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:20:25,540 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:20:25,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:20:25,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:20:25,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:20:25,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:20:25,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:20:25,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:20:25,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:20:25,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:20:25,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:20:25,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:20:25,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:20:25,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:20:25,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:20:25,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:20:25,544 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:20:25,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:20:25,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:20:25,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:20:25,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:20:25,994 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:20:25,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-10-13 19:20:26,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfa06d072/ab1ccb00e68f474892934eccbd95cc08/FLAGf55d7b969 [2021-10-13 19:20:26,811 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:20:26,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-10-13 19:20:26,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfa06d072/ab1ccb00e68f474892934eccbd95cc08/FLAGf55d7b969 [2021-10-13 19:20:27,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfa06d072/ab1ccb00e68f474892934eccbd95cc08 [2021-10-13 19:20:27,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:20:27,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:20:27,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:20:27,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:20:27,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:20:27,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d69b6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27, skipping insertion in model container [2021-10-13 19:20:27,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:20:27,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:20:27,395 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/popl20-bad-dot-product.wvr.c[2673,2686] [2021-10-13 19:20:27,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:20:27,421 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:20:27,453 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/popl20-bad-dot-product.wvr.c[2673,2686] [2021-10-13 19:20:27,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:20:27,479 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:20:27,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27 WrapperNode [2021-10-13 19:20:27,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:20:27,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:20:27,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:20:27,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:20:27,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:20:27,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:20:27,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:20:27,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:20:27,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:20:27,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:20:27,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:20:27,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:20:27,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (1/1) ... [2021-10-13 19:20:27,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:20:27,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:20:27,673 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 19:20:27,701 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 19:20:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:20:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:20:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:20:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:20:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:20:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:20:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:20:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:20:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:20:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:20:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:20:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:20:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:20:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:20:27,752 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 19:20:28,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:20:28,605 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-13 19:20:28,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:28 BoogieIcfgContainer [2021-10-13 19:20:28,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:20:28,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:20:28,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:20:28,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:20:28,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:20:27" (1/3) ... [2021-10-13 19:20:28,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203f517d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:28, skipping insertion in model container [2021-10-13 19:20:28,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:27" (2/3) ... [2021-10-13 19:20:28,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203f517d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:28, skipping insertion in model container [2021-10-13 19:20:28,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:28" (3/3) ... [2021-10-13 19:20:28,618 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2021-10-13 19:20:28,625 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:20:28,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:20:28,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-10-13 19:20:28,626 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:20:28,702 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,703 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,703 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,703 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,704 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,704 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,705 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,706 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,706 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,706 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,706 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,706 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,707 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,707 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,707 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,707 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,707 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,708 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,708 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,710 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,710 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,710 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,711 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,711 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,711 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,712 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,712 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,712 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,712 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,714 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,714 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,715 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,715 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,715 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,716 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,716 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,716 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,716 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,716 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,719 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,719 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,719 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,719 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,719 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,720 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,722 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,723 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,724 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,724 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,725 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,725 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,725 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,726 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,726 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,726 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,726 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,726 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,727 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,727 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,729 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,730 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,730 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,731 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,731 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,733 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,742 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,742 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,742 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,742 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,744 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,744 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,745 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,745 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,745 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,745 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,745 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,745 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,753 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,753 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,771 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,771 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,773 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,773 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,779 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,780 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,796 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,796 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,796 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,796 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,797 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,797 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,797 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,797 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,798 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,798 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,798 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,798 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,798 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,798 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,799 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,803 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,804 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,808 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,808 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,808 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,809 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,809 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,809 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,809 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,809 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,809 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,810 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,810 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,810 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,810 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,810 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,810 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,811 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,812 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,813 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,813 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,813 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,815 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,817 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,817 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,819 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,820 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,820 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,820 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,820 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,820 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,820 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,821 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,822 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,823 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,823 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,823 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,823 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,823 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,823 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,824 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,825 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,825 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,825 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,825 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,827 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,828 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,828 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,828 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,828 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,828 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,828 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,829 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,830 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,831 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,832 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,833 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,834 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,835 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,839 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,839 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,846 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,847 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,849 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,854 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,854 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,854 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,854 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,855 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,855 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,856 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,856 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,857 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,857 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,857 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,857 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,859 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,859 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,859 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,860 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,860 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,860 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,860 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,860 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,860 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,861 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,861 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,861 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,861 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,861 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,861 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,862 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,862 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,862 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,862 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:20:28,876 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 19:20:28,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:20:28,940 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 19:20:28,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2021-10-13 19:20:28,964 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:20:28,978 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 397 transitions, 818 flow [2021-10-13 19:20:28,982 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 397 transitions, 818 flow [2021-10-13 19:20:28,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 397 transitions, 818 flow [2021-10-13 19:20:29,285 INFO L129 PetriNetUnfolder]: 37/394 cut-off events. [2021-10-13 19:20:29,285 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 19:20:29,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 394 events. 37/394 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1031 event pairs, 0 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 289. Up to 2 conditions per place. [2021-10-13 19:20:29,359 INFO L116 LiptonReduction]: Number of co-enabled transitions 45198 [2021-10-13 19:20:52,405 INFO L131 LiptonReduction]: Checked pairs total: 55253 [2021-10-13 19:20:52,406 INFO L133 LiptonReduction]: Total number of compositions: 503 [2021-10-13 19:20:52,416 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 75 transitions, 174 flow [2021-10-13 19:20:52,798 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9242 states, 7908 states have (on average 4.219650986342944) internal successors, (33369), 9241 states have internal predecessors, (33369), 0 states have call successors, (0), 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 19:20:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 9242 states, 7908 states have (on average 4.219650986342944) internal successors, (33369), 9241 states have internal predecessors, (33369), 0 states have call successors, (0), 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 19:20:52,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:20:52,859 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:20:52,860 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:20:52,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:20:52,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:20:52,870 INFO L82 PathProgramCache]: Analyzing trace with hash 55203, now seen corresponding path program 1 times [2021-10-13 19:20:52,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:20:52,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294734421] [2021-10-13 19:20:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:52,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:20:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:53,305 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 19:20:53,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:20:53,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294734421] [2021-10-13 19:20:53,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294734421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:20:53,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:20:53,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:20:53,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131932249] [2021-10-13 19:20:53,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:20:53,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:20:53,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:20:53,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:20:53,369 INFO L87 Difference]: Start difference. First operand has 9242 states, 7908 states have (on average 4.219650986342944) internal successors, (33369), 9241 states have internal predecessors, (33369), 0 states have call successors, (0), 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 19:20:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:20:53,711 INFO L93 Difference]: Finished difference Result 12583 states and 45617 transitions. [2021-10-13 19:20:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:20:53,713 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 19:20:53,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:20:53,929 INFO L225 Difference]: With dead ends: 12583 [2021-10-13 19:20:53,929 INFO L226 Difference]: Without dead ends: 12583 [2021-10-13 19:20:53,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:20:53,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12583 states. [2021-10-13 19:20:54,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12583 to 6296. [2021-10-13 19:20:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 5564 states have (on average 4.100467289719626) internal successors, (22815), 6295 states have internal predecessors, (22815), 0 states have call successors, (0), 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 19:20:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 22815 transitions. [2021-10-13 19:20:54,662 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 22815 transitions. Word has length 2 [2021-10-13 19:20:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:20:54,663 INFO L470 AbstractCegarLoop]: Abstraction has 6296 states and 22815 transitions. [2021-10-13 19:20:54,664 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 19:20:54,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 22815 transitions. [2021-10-13 19:20:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:20:54,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:20:54,665 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:20:54,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:20:54,666 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:20:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:20:54,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1715594, now seen corresponding path program 1 times [2021-10-13 19:20:54,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:20:54,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549995375] [2021-10-13 19:20:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:54,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:20:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:54,787 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 19:20:54,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:20:54,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549995375] [2021-10-13 19:20:54,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549995375] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:20:54,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586024841] [2021-10-13 19:20:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:54,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:20:54,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:20:54,794 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 19:20:54,804 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 19:20:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:54,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:20:54,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:20:54,947 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 19:20:54,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586024841] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:20:54,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:20:54,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-13 19:20:54,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053232839] [2021-10-13 19:20:54,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:20:54,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:20:54,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:20:54,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:20:54,951 INFO L87 Difference]: Start difference. First operand 6296 states and 22815 transitions. Second operand has 4 states, 3 states have (on average 1.0) 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 19:20:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:20:55,273 INFO L93 Difference]: Finished difference Result 12581 states and 45615 transitions. [2021-10-13 19:20:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:20:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 19:20:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:20:55,533 INFO L225 Difference]: With dead ends: 12581 [2021-10-13 19:20:55,533 INFO L226 Difference]: Without dead ends: 12581 [2021-10-13 19:20:55,537 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:20:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12581 states. [2021-10-13 19:20:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12581 to 6294. [2021-10-13 19:20:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6294 states, 5564 states have (on average 4.100107836089144) internal successors, (22813), 6293 states have internal predecessors, (22813), 0 states have call successors, (0), 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 19:20:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 22813 transitions. [2021-10-13 19:20:56,148 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 22813 transitions. Word has length 3 [2021-10-13 19:20:56,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:20:56,149 INFO L470 AbstractCegarLoop]: Abstraction has 6294 states and 22813 transitions. [2021-10-13 19:20:56,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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 19:20:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 22813 transitions. [2021-10-13 19:20:56,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:20:56,149 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:20:56,150 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:20:56,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 19:20:56,363 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 19:20:56,365 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:20:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:20:56,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1715595, now seen corresponding path program 1 times [2021-10-13 19:20:56,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:20:56,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669437384] [2021-10-13 19:20:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:56,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:20:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:56,463 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 19:20:56,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:20:56,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669437384] [2021-10-13 19:20:56,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669437384] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:20:56,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233246323] [2021-10-13 19:20:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:56,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:20:56,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:20:56,475 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 19:20:56,498 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 19:20:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:56,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:20:56,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:20:56,615 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 19:20:56,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233246323] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:20:56,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:20:56,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:20:56,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638859690] [2021-10-13 19:20:56,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:20:56,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:20:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:20:56,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:20:56,619 INFO L87 Difference]: Start difference. First operand 6294 states and 22813 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 19:20:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:20:57,009 INFO L93 Difference]: Finished difference Result 18870 states and 68421 transitions. [2021-10-13 19:20:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:20:57,010 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 19:20:57,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:20:57,179 INFO L225 Difference]: With dead ends: 18870 [2021-10-13 19:20:57,180 INFO L226 Difference]: Without dead ends: 18870 [2021-10-13 19:20:57,180 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:20:57,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18870 states. [2021-10-13 19:20:57,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18870 to 6296. [2021-10-13 19:20:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 5566 states have (on average 4.0993532159540065) internal successors, (22817), 6295 states have internal predecessors, (22817), 0 states have call successors, (0), 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 19:20:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 22817 transitions. [2021-10-13 19:20:57,720 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 22817 transitions. Word has length 3 [2021-10-13 19:20:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:20:57,721 INFO L470 AbstractCegarLoop]: Abstraction has 6296 states and 22817 transitions. [2021-10-13 19:20:57,721 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 19:20:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 22817 transitions. [2021-10-13 19:20:57,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:20:57,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:20:57,722 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:20:57,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-13 19:20:57,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:20:57,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:20:57,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:20:57,937 INFO L82 PathProgramCache]: Analyzing trace with hash 53187716, now seen corresponding path program 2 times [2021-10-13 19:20:57,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:20:57,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687604435] [2021-10-13 19:20:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:57,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:20:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:58,024 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 19:20:58,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:20:58,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687604435] [2021-10-13 19:20:58,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687604435] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:20:58,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922179598] [2021-10-13 19:20:58,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:20:58,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:20:58,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:20:58,032 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 19:20:58,129 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 19:20:58,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:20:58,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:20:58,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:20:58,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:20:58,267 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 19:20:58,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922179598] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:20:58,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:20:58,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:20:58,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756491901] [2021-10-13 19:20:58,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:20:58,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:20:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:20:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:20:58,270 INFO L87 Difference]: Start difference. First operand 6296 states and 22817 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 19:20:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:20:58,359 INFO L93 Difference]: Finished difference Result 6295 states and 22816 transitions. [2021-10-13 19:20:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:20:58,360 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 19:20:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:20:58,413 INFO L225 Difference]: With dead ends: 6295 [2021-10-13 19:20:58,413 INFO L226 Difference]: Without dead ends: 6295 [2021-10-13 19:20:58,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:20:58,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2021-10-13 19:20:58,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 6293. [2021-10-13 19:20:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6293 states, 5564 states have (on average 4.099928109273904) internal successors, (22812), 6292 states have internal predecessors, (22812), 0 states have call successors, (0), 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 19:20:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 22812 transitions. [2021-10-13 19:20:58,795 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 22812 transitions. Word has length 4 [2021-10-13 19:20:58,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:20:58,795 INFO L470 AbstractCegarLoop]: Abstraction has 6293 states and 22812 transitions. [2021-10-13 19:20:58,795 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 19:20:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 22812 transitions. [2021-10-13 19:20:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 19:20:58,796 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:20:58,796 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-13 19:20:58,837 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 19:20:59,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:20:59,012 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:20:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:20:59,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1651559312, now seen corresponding path program 1 times [2021-10-13 19:20:59,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:20:59,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792681257] [2021-10-13 19:20:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:59,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:20:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:59,086 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 19:20:59,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:20:59,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792681257] [2021-10-13 19:20:59,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792681257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:20:59,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128905429] [2021-10-13 19:20:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:20:59,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:20:59,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:20:59,092 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 19:20:59,111 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 19:20:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:20:59,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:20:59,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:20:59,228 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 19:20:59,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128905429] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:20:59,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:20:59,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 19:20:59,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372998182] [2021-10-13 19:20:59,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:20:59,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:20:59,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:20:59,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:20:59,230 INFO L87 Difference]: Start difference. First operand 6293 states and 22812 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:20:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:20:59,648 INFO L93 Difference]: Finished difference Result 25158 states and 91226 transitions. [2021-10-13 19:20:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:20:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 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 5 [2021-10-13 19:20:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:00,164 INFO L225 Difference]: With dead ends: 25158 [2021-10-13 19:21:00,164 INFO L226 Difference]: Without dead ends: 25158 [2021-10-13 19:21:00,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:21:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25158 states. [2021-10-13 19:21:00,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25158 to 6294. [2021-10-13 19:21:00,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6294 states, 5565 states have (on average 4.099550763701707) internal successors, (22814), 6293 states have internal predecessors, (22814), 0 states have call successors, (0), 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 19:21:00,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 22814 transitions. [2021-10-13 19:21:00,762 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 22814 transitions. Word has length 5 [2021-10-13 19:21:00,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:00,763 INFO L470 AbstractCegarLoop]: Abstraction has 6294 states and 22814 transitions. [2021-10-13 19:21:00,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:21:00,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 22814 transitions. [2021-10-13 19:21:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:21:00,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:00,764 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2021-10-13 19:21:00,810 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 19:21:00,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:00,980 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:00,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash -341265754, now seen corresponding path program 2 times [2021-10-13 19:21:00,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:00,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320610631] [2021-10-13 19:21:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:00,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:21:01,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:01,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320610631] [2021-10-13 19:21:01,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320610631] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:01,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686363038] [2021-10-13 19:21:01,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:21:01,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:01,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:01,051 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 19:21:01,054 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 19:21:01,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:21:01,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:21:01,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:21:01,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:21:01,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686363038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:01,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:21:01,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2021-10-13 19:21:01,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871451089] [2021-10-13 19:21:01,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:21:01,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:01,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:21:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:21:01,185 INFO L87 Difference]: Start difference. First operand 6294 states and 22814 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:21:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:01,271 INFO L93 Difference]: Finished difference Result 6293 states and 22813 transitions. [2021-10-13 19:21:01,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:21:01,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 6 [2021-10-13 19:21:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:01,312 INFO L225 Difference]: With dead ends: 6293 [2021-10-13 19:21:01,312 INFO L226 Difference]: Without dead ends: 6293 [2021-10-13 19:21:01,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 31.8ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:21:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2021-10-13 19:21:01,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6290. [2021-10-13 19:21:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6290 states, 5562 states have (on average 4.100503416037396) internal successors, (22807), 6289 states have internal predecessors, (22807), 0 states have call successors, (0), 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 19:21:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6290 states to 6290 states and 22807 transitions. [2021-10-13 19:21:01,811 INFO L78 Accepts]: Start accepts. Automaton has 6290 states and 22807 transitions. Word has length 6 [2021-10-13 19:21:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:01,811 INFO L470 AbstractCegarLoop]: Abstraction has 6290 states and 22807 transitions. [2021-10-13 19:21:01,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:21:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6290 states and 22807 transitions. [2021-10-13 19:21:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:21:01,812 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:01,812 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:01,847 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 19:21:02,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:02,026 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:02,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:02,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1962127292, now seen corresponding path program 1 times [2021-10-13 19:21:02,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:02,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098322165] [2021-10-13 19:21:02,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:02,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:02,231 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 19:21:02,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:02,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098322165] [2021-10-13 19:21:02,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098322165] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:02,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:02,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:21:02,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571608803] [2021-10-13 19:21:02,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:21:02,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:02,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:21:02,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:02,234 INFO L87 Difference]: Start difference. First operand 6290 states and 22807 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:21:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:02,372 INFO L93 Difference]: Finished difference Result 11226 states and 40760 transitions. [2021-10-13 19:21:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:21:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-10-13 19:21:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:02,450 INFO L225 Difference]: With dead ends: 11226 [2021-10-13 19:21:02,450 INFO L226 Difference]: Without dead ends: 11226 [2021-10-13 19:21:02,451 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2021-10-13 19:21:02,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 7640. [2021-10-13 19:21:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7640 states, 6912 states have (on average 4.521556712962963) internal successors, (31253), 7639 states have internal predecessors, (31253), 0 states have call successors, (0), 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 19:21:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7640 states to 7640 states and 31253 transitions. [2021-10-13 19:21:02,928 INFO L78 Accepts]: Start accepts. Automaton has 7640 states and 31253 transitions. Word has length 7 [2021-10-13 19:21:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:02,928 INFO L470 AbstractCegarLoop]: Abstraction has 7640 states and 31253 transitions. [2021-10-13 19:21:02,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:21:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 7640 states and 31253 transitions. [2021-10-13 19:21:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:21:02,929 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:02,930 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:02,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:21:02,930 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:02,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:02,930 INFO L82 PathProgramCache]: Analyzing trace with hash -696411993, now seen corresponding path program 1 times [2021-10-13 19:21:02,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:02,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463246948] [2021-10-13 19:21:02,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:02,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:02,976 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 19:21:02,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:02,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463246948] [2021-10-13 19:21:02,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463246948] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:02,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:02,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:21:02,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352054190] [2021-10-13 19:21:02,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:21:02,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:21:02,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:02,979 INFO L87 Difference]: Start difference. First operand 7640 states and 31253 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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 19:21:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:03,316 INFO L93 Difference]: Finished difference Result 13476 states and 54688 transitions. [2021-10-13 19:21:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:21:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 19:21:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:03,530 INFO L225 Difference]: With dead ends: 13476 [2021-10-13 19:21:03,530 INFO L226 Difference]: Without dead ends: 13476 [2021-10-13 19:21:03,530 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:03,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13476 states. [2021-10-13 19:21:04,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13476 to 9440. [2021-10-13 19:21:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9440 states, 8712 states have (on average 4.949150596877869) internal successors, (43117), 9439 states have internal predecessors, (43117), 0 states have call successors, (0), 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 19:21:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9440 states to 9440 states and 43117 transitions. [2021-10-13 19:21:04,121 INFO L78 Accepts]: Start accepts. Automaton has 9440 states and 43117 transitions. Word has length 8 [2021-10-13 19:21:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:04,122 INFO L470 AbstractCegarLoop]: Abstraction has 9440 states and 43117 transitions. [2021-10-13 19:21:04,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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 19:21:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 9440 states and 43117 transitions. [2021-10-13 19:21:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:21:04,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:04,124 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:04,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:21:04,125 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:04,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:04,125 INFO L82 PathProgramCache]: Analyzing trace with hash -696411992, now seen corresponding path program 1 times [2021-10-13 19:21:04,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:04,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092540387] [2021-10-13 19:21:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:04,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:04,184 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 19:21:04,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:04,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092540387] [2021-10-13 19:21:04,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092540387] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:04,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:04,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:21:04,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438553465] [2021-10-13 19:21:04,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:21:04,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:21:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:21:04,187 INFO L87 Difference]: Start difference. First operand 9440 states and 43117 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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 19:21:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:04,330 INFO L93 Difference]: Finished difference Result 9443 states and 43121 transitions. [2021-10-13 19:21:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:21:04,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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 19:21:04,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:04,404 INFO L225 Difference]: With dead ends: 9443 [2021-10-13 19:21:04,404 INFO L226 Difference]: Without dead ends: 9441 [2021-10-13 19:21:04,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:21:04,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9441 states. [2021-10-13 19:21:04,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9441 to 9441. [2021-10-13 19:21:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9441 states, 8713 states have (on average 4.948697348789166) internal successors, (43118), 9440 states have internal predecessors, (43118), 0 states have call successors, (0), 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 19:21:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9441 states to 9441 states and 43118 transitions. [2021-10-13 19:21:05,043 INFO L78 Accepts]: Start accepts. Automaton has 9441 states and 43118 transitions. Word has length 8 [2021-10-13 19:21:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:05,044 INFO L470 AbstractCegarLoop]: Abstraction has 9441 states and 43118 transitions. [2021-10-13 19:21:05,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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 19:21:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9441 states and 43118 transitions. [2021-10-13 19:21:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:21:05,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:05,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:05,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:21:05,045 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:05,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:05,046 INFO L82 PathProgramCache]: Analyzing trace with hash -851270321, now seen corresponding path program 1 times [2021-10-13 19:21:05,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:05,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791121580] [2021-10-13 19:21:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:05,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:05,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:05,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791121580] [2021-10-13 19:21:05,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791121580] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:05,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:05,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:21:05,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844226] [2021-10-13 19:21:05,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:21:05,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:05,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:21:05,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:21:05,158 INFO L87 Difference]: Start difference. First operand 9441 states and 43118 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 19:21:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:05,827 INFO L93 Difference]: Finished difference Result 20663 states and 92644 transitions. [2021-10-13 19:21:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:21:05,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2021-10-13 19:21:05,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:05,992 INFO L225 Difference]: With dead ends: 20663 [2021-10-13 19:21:05,992 INFO L226 Difference]: Without dead ends: 20663 [2021-10-13 19:21:05,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 51.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:21:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20663 states. [2021-10-13 19:21:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20663 to 15285. [2021-10-13 19:21:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15285 states, 14557 states have (on average 5.391289414027615) internal successors, (78481), 15284 states have internal predecessors, (78481), 0 states have call successors, (0), 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 19:21:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15285 states to 15285 states and 78481 transitions. [2021-10-13 19:21:07,160 INFO L78 Accepts]: Start accepts. Automaton has 15285 states and 78481 transitions. Word has length 9 [2021-10-13 19:21:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:07,161 INFO L470 AbstractCegarLoop]: Abstraction has 15285 states and 78481 transitions. [2021-10-13 19:21:07,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 19:21:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 15285 states and 78481 transitions. [2021-10-13 19:21:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:21:07,162 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:07,162 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:07,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 19:21:07,163 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:07,164 INFO L82 PathProgramCache]: Analyzing trace with hash -58420627, now seen corresponding path program 1 times [2021-10-13 19:21:07,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:07,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353313030] [2021-10-13 19:21:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:07,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:07,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:07,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353313030] [2021-10-13 19:21:07,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353313030] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:07,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:07,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:21:07,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186854618] [2021-10-13 19:21:07,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:21:07,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:07,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:21:07,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:07,199 INFO L87 Difference]: Start difference. First operand 15285 states and 78481 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:07,848 INFO L93 Difference]: Finished difference Result 27655 states and 142265 transitions. [2021-10-13 19:21:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:21:07,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-13 19:21:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:08,059 INFO L225 Difference]: With dead ends: 27655 [2021-10-13 19:21:08,059 INFO L226 Difference]: Without dead ends: 27655 [2021-10-13 19:21:08,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:08,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27655 states. [2021-10-13 19:21:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27655 to 20035. [2021-10-13 19:21:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20035 states, 19307 states have (on average 5.66022686072409) internal successors, (109282), 20034 states have internal predecessors, (109282), 0 states have call successors, (0), 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 19:21:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20035 states to 20035 states and 109282 transitions. [2021-10-13 19:21:09,607 INFO L78 Accepts]: Start accepts. Automaton has 20035 states and 109282 transitions. Word has length 10 [2021-10-13 19:21:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:09,608 INFO L470 AbstractCegarLoop]: Abstraction has 20035 states and 109282 transitions. [2021-10-13 19:21:09,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 20035 states and 109282 transitions. [2021-10-13 19:21:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:21:09,609 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:09,609 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:09,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 19:21:09,610 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:09,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:09,610 INFO L82 PathProgramCache]: Analyzing trace with hash -619265455, now seen corresponding path program 1 times [2021-10-13 19:21:09,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:09,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005480814] [2021-10-13 19:21:09,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:09,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:09,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:09,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005480814] [2021-10-13 19:21:09,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005480814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:09,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:09,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:21:09,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968984448] [2021-10-13 19:21:09,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:21:09,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:21:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:21:09,743 INFO L87 Difference]: Start difference. First operand 20035 states and 109282 transitions. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:10,596 INFO L93 Difference]: Finished difference Result 26775 states and 128666 transitions. [2021-10-13 19:21:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:21:10,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-13 19:21:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:10,797 INFO L225 Difference]: With dead ends: 26775 [2021-10-13 19:21:10,798 INFO L226 Difference]: Without dead ends: 26775 [2021-10-13 19:21:10,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 62.0ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:21:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26775 states. [2021-10-13 19:21:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26775 to 19859. [2021-10-13 19:21:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19859 states, 19131 states have (on average 5.64957398985939) internal successors, (108082), 19858 states have internal predecessors, (108082), 0 states have call successors, (0), 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 19:21:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19859 states to 19859 states and 108082 transitions. [2021-10-13 19:21:11,955 INFO L78 Accepts]: Start accepts. Automaton has 19859 states and 108082 transitions. Word has length 10 [2021-10-13 19:21:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:11,955 INFO L470 AbstractCegarLoop]: Abstraction has 19859 states and 108082 transitions. [2021-10-13 19:21:11,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19859 states and 108082 transitions. [2021-10-13 19:21:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:21:11,957 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:11,957 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:11,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 19:21:11,957 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash -619222528, now seen corresponding path program 1 times [2021-10-13 19:21:11,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:11,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143397163] [2021-10-13 19:21:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:11,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:12,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:12,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143397163] [2021-10-13 19:21:12,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143397163] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:12,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685700414] [2021-10-13 19:21:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:12,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:12,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:12,040 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 19:21:12,053 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 19:21:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:12,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:21:12,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:21:12,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685700414] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:12,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:21:12,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 9 [2021-10-13 19:21:12,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765983294] [2021-10-13 19:21:12,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:21:12,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:21:12,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:21:12,255 INFO L87 Difference]: Start difference. First operand 19859 states and 108082 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 19:21:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:13,222 INFO L93 Difference]: Finished difference Result 37424 states and 180714 transitions. [2021-10-13 19:21:13,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:21:13,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 10 [2021-10-13 19:21:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:13,569 INFO L225 Difference]: With dead ends: 37424 [2021-10-13 19:21:13,569 INFO L226 Difference]: Without dead ends: 37414 [2021-10-13 19:21:13,570 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.5ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:21:14,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37414 states. [2021-10-13 19:21:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37414 to 25166. [2021-10-13 19:21:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25166 states, 24519 states have (on average 5.495941922590644) internal successors, (134755), 25165 states have internal predecessors, (134755), 0 states have call successors, (0), 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 19:21:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25166 states to 25166 states and 134755 transitions. [2021-10-13 19:21:15,300 INFO L78 Accepts]: Start accepts. Automaton has 25166 states and 134755 transitions. Word has length 10 [2021-10-13 19:21:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:15,301 INFO L470 AbstractCegarLoop]: Abstraction has 25166 states and 134755 transitions. [2021-10-13 19:21:15,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 19:21:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 25166 states and 134755 transitions. [2021-10-13 19:21:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:21:15,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:15,305 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:15,332 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 19:21:15,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 19:21:15,510 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:15,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:15,511 INFO L82 PathProgramCache]: Analyzing trace with hash -120661493, now seen corresponding path program 1 times [2021-10-13 19:21:15,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:15,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164783210] [2021-10-13 19:21:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:15,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:15,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:15,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164783210] [2021-10-13 19:21:15,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164783210] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:15,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511015309] [2021-10-13 19:21:15,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:15,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:15,609 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 19:21:15,628 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 19:21:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:15,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 19:21:15,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:15,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511015309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:15,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:21:15,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-13 19:21:15,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874855784] [2021-10-13 19:21:15,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:21:15,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:15,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:21:15,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:21:15,829 INFO L87 Difference]: Start difference. First operand 25166 states and 134755 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:21:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:17,108 INFO L93 Difference]: Finished difference Result 52074 states and 260604 transitions. [2021-10-13 19:21:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:21:17,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 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 10 [2021-10-13 19:21:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:18,010 INFO L225 Difference]: With dead ends: 52074 [2021-10-13 19:21:18,010 INFO L226 Difference]: Without dead ends: 52068 [2021-10-13 19:21:18,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:21:18,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52068 states. [2021-10-13 19:21:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52068 to 25354. [2021-10-13 19:21:19,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25354 states, 24707 states have (on average 5.501963006435423) internal successors, (135937), 25353 states have internal predecessors, (135937), 0 states have call successors, (0), 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 19:21:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25354 states to 25354 states and 135937 transitions. [2021-10-13 19:21:19,964 INFO L78 Accepts]: Start accepts. Automaton has 25354 states and 135937 transitions. Word has length 10 [2021-10-13 19:21:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:19,965 INFO L470 AbstractCegarLoop]: Abstraction has 25354 states and 135937 transitions. [2021-10-13 19:21:19,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:21:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 25354 states and 135937 transitions. [2021-10-13 19:21:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:21:19,969 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:19,969 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:20,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-13 19:21:20,183 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,SelfDestructingSolverStorable13 [2021-10-13 19:21:20,183 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:20,187 INFO L82 PathProgramCache]: Analyzing trace with hash 885778664, now seen corresponding path program 1 times [2021-10-13 19:21:20,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:20,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991380531] [2021-10-13 19:21:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:20,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:21:20,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:20,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991380531] [2021-10-13 19:21:20,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991380531] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:20,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523532109] [2021-10-13 19:21:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:20,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:20,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:20,253 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 19:21:20,277 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 19:21:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:20,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:21:20,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:21:20,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523532109] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:20,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:21:20,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-13 19:21:20,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486432382] [2021-10-13 19:21:20,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:21:20,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:20,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:21:20,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:21:20,393 INFO L87 Difference]: Start difference. First operand 25354 states and 135937 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 19:21:21,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:21,439 INFO L93 Difference]: Finished difference Result 41234 states and 204519 transitions. [2021-10-13 19:21:21,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:21:21,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 19:21:21,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:21,869 INFO L225 Difference]: With dead ends: 41234 [2021-10-13 19:21:21,869 INFO L226 Difference]: Without dead ends: 41234 [2021-10-13 19:21:21,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:21:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41234 states. [2021-10-13 19:21:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41234 to 31842. [2021-10-13 19:21:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31842 states, 31195 states have (on average 5.662285622695945) internal successors, (176635), 31841 states have internal predecessors, (176635), 0 states have call successors, (0), 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 19:21:24,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31842 states to 31842 states and 176635 transitions. [2021-10-13 19:21:24,082 INFO L78 Accepts]: Start accepts. Automaton has 31842 states and 176635 transitions. Word has length 11 [2021-10-13 19:21:24,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:24,082 INFO L470 AbstractCegarLoop]: Abstraction has 31842 states and 176635 transitions. [2021-10-13 19:21:24,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 19:21:24,083 INFO L276 IsEmpty]: Start isEmpty. Operand 31842 states and 176635 transitions. [2021-10-13 19:21:24,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:21:24,084 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:24,084 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:24,126 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 19:21:24,298 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,SelfDestructingSolverStorable14 [2021-10-13 19:21:24,299 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:24,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:24,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1811039382, now seen corresponding path program 1 times [2021-10-13 19:21:24,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:24,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423831574] [2021-10-13 19:21:24,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:24,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:24,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:24,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423831574] [2021-10-13 19:21:24,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423831574] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:24,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:24,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:21:24,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219619225] [2021-10-13 19:21:24,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:21:24,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:21:24,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:24,394 INFO L87 Difference]: Start difference. First operand 31842 states and 176635 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 19:21:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:25,792 INFO L93 Difference]: Finished difference Result 49744 states and 281765 transitions. [2021-10-13 19:21:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:21:25,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 19:21:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:26,218 INFO L225 Difference]: With dead ends: 49744 [2021-10-13 19:21:26,218 INFO L226 Difference]: Without dead ends: 49744 [2021-10-13 19:21:26,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:26,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49744 states. [2021-10-13 19:21:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49744 to 43266. [2021-10-13 19:21:28,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43266 states, 42619 states have (on average 5.875970811140571) internal successors, (250428), 43265 states have internal predecessors, (250428), 0 states have call successors, (0), 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 19:21:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43266 states to 43266 states and 250428 transitions. [2021-10-13 19:21:29,222 INFO L78 Accepts]: Start accepts. Automaton has 43266 states and 250428 transitions. Word has length 11 [2021-10-13 19:21:29,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:29,222 INFO L470 AbstractCegarLoop]: Abstraction has 43266 states and 250428 transitions. [2021-10-13 19:21:29,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 19:21:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand 43266 states and 250428 transitions. [2021-10-13 19:21:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:21:29,224 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:29,224 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:29,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 19:21:29,233 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:29,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:29,234 INFO L82 PathProgramCache]: Analyzing trace with hash 554771733, now seen corresponding path program 1 times [2021-10-13 19:21:29,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:29,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204489888] [2021-10-13 19:21:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:29,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:29,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:29,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204489888] [2021-10-13 19:21:29,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204489888] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:29,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511558017] [2021-10-13 19:21:29,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:29,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:29,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:29,352 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 19:21:29,373 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 19:21:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:29,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 19:21:29,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:29,576 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 19:21:29,659 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:21:29,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:21:29,757 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:21:29,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:21:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:29,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511558017] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:29,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:21:29,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 13 [2021-10-13 19:21:29,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665070998] [2021-10-13 19:21:29,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 19:21:29,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:29,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 19:21:29,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:21:29,794 INFO L87 Difference]: Start difference. First operand 43266 states and 250428 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 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 19:21:33,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:33,119 INFO L93 Difference]: Finished difference Result 83645 states and 453944 transitions. [2021-10-13 19:21:33,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:21:33,124 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 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 11 [2021-10-13 19:21:33,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:33,979 INFO L225 Difference]: With dead ends: 83645 [2021-10-13 19:21:33,979 INFO L226 Difference]: Without dead ends: 83645 [2021-10-13 19:21:33,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 487.5ms TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:21:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83645 states. [2021-10-13 19:21:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83645 to 42810. [2021-10-13 19:21:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42810 states, 42163 states have (on average 5.8663520147997055) internal successors, (247343), 42809 states have internal predecessors, (247343), 0 states have call successors, (0), 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 19:21:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42810 states to 42810 states and 247343 transitions. [2021-10-13 19:21:38,259 INFO L78 Accepts]: Start accepts. Automaton has 42810 states and 247343 transitions. Word has length 11 [2021-10-13 19:21:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:38,259 INFO L470 AbstractCegarLoop]: Abstraction has 42810 states and 247343 transitions. [2021-10-13 19:21:38,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 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 19:21:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 42810 states and 247343 transitions. [2021-10-13 19:21:38,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:21:38,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:38,261 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:38,290 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 19:21:38,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:38,476 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:38,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:38,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1053375632, now seen corresponding path program 1 times [2021-10-13 19:21:38,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:38,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131418109] [2021-10-13 19:21:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:38,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:38,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:38,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131418109] [2021-10-13 19:21:38,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131418109] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:38,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748933892] [2021-10-13 19:21:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:38,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:38,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:38,768 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 19:21:38,790 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 19:21:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:38,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-13 19:21:38,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:38,935 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 19:21:38,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:21:38,978 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 19:21:39,021 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:21:39,021 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 19:21:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:39,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748933892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:39,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:21:39,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 19:21:39,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94798024] [2021-10-13 19:21:39,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:21:39,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:39,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:21:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:21:39,071 INFO L87 Difference]: Start difference. First operand 42810 states and 247343 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 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 19:21:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:41,381 INFO L93 Difference]: Finished difference Result 72448 states and 404923 transitions. [2021-10-13 19:21:41,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:21:41,382 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 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 11 [2021-10-13 19:21:41,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:42,671 INFO L225 Difference]: With dead ends: 72448 [2021-10-13 19:21:42,672 INFO L226 Difference]: Without dead ends: 72448 [2021-10-13 19:21:42,672 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 388.1ms TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:21:42,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72448 states. [2021-10-13 19:21:45,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72448 to 42810. [2021-10-13 19:21:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42810 states, 42163 states have (on average 5.86625714489007) internal successors, (247339), 42809 states have internal predecessors, (247339), 0 states have call successors, (0), 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 19:21:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42810 states to 42810 states and 247339 transitions. [2021-10-13 19:21:45,593 INFO L78 Accepts]: Start accepts. Automaton has 42810 states and 247339 transitions. Word has length 11 [2021-10-13 19:21:45,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:45,594 INFO L470 AbstractCegarLoop]: Abstraction has 42810 states and 247339 transitions. [2021-10-13 19:21:45,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 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 19:21:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 42810 states and 247339 transitions. [2021-10-13 19:21:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:21:45,596 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:45,596 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:45,643 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 19:21:45,810 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,SelfDestructingSolverStorable17 [2021-10-13 19:21:45,811 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:45,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1053375690, now seen corresponding path program 1 times [2021-10-13 19:21:45,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:45,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106231142] [2021-10-13 19:21:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:45,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:21:45,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:45,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106231142] [2021-10-13 19:21:45,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106231142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:45,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:45,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:21:45,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767345147] [2021-10-13 19:21:45,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:21:45,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:45,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:21:45,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:21:45,855 INFO L87 Difference]: Start difference. First operand 42810 states and 247339 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:47,350 INFO L93 Difference]: Finished difference Result 55401 states and 297829 transitions. [2021-10-13 19:21:47,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:21:47,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:47,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:47,817 INFO L225 Difference]: With dead ends: 55401 [2021-10-13 19:21:47,817 INFO L226 Difference]: Without dead ends: 55401 [2021-10-13 19:21:47,817 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 19:21:47,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55401 states. [2021-10-13 19:21:50,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55401 to 47622. [2021-10-13 19:21:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47622 states, 46975 states have (on average 5.676444917509314) internal successors, (266651), 47621 states have internal predecessors, (266651), 0 states have call successors, (0), 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 19:21:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47622 states to 47622 states and 266651 transitions. [2021-10-13 19:21:51,128 INFO L78 Accepts]: Start accepts. Automaton has 47622 states and 266651 transitions. Word has length 11 [2021-10-13 19:21:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:51,129 INFO L470 AbstractCegarLoop]: Abstraction has 47622 states and 266651 transitions. [2021-10-13 19:21:51,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 19:21:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 47622 states and 266651 transitions. [2021-10-13 19:21:51,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:21:51,137 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:51,137 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:51,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 19:21:51,137 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:51,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1446633884, now seen corresponding path program 1 times [2021-10-13 19:21:51,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:51,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016184439] [2021-10-13 19:21:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:51,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:51,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:51,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016184439] [2021-10-13 19:21:51,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016184439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:51,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:21:51,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:21:51,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697107436] [2021-10-13 19:21:51,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:21:51,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:51,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:21:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:21:51,249 INFO L87 Difference]: Start difference. First operand 47622 states and 266651 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:21:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:21:53,323 INFO L93 Difference]: Finished difference Result 79609 states and 429564 transitions. [2021-10-13 19:21:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:21:53,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:21:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:21:54,498 INFO L225 Difference]: With dead ends: 79609 [2021-10-13 19:21:54,498 INFO L226 Difference]: Without dead ends: 79607 [2021-10-13 19:21:54,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 58.1ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:21:54,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79607 states. [2021-10-13 19:21:56,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79607 to 48114. [2021-10-13 19:21:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48114 states, 47467 states have (on average 5.657045947711041) internal successors, (268523), 48113 states have internal predecessors, (268523), 0 states have call successors, (0), 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 19:21:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48114 states to 48114 states and 268523 transitions. [2021-10-13 19:21:57,452 INFO L78 Accepts]: Start accepts. Automaton has 48114 states and 268523 transitions. Word has length 12 [2021-10-13 19:21:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:21:57,453 INFO L470 AbstractCegarLoop]: Abstraction has 48114 states and 268523 transitions. [2021-10-13 19:21:57,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:21:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 48114 states and 268523 transitions. [2021-10-13 19:21:57,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:21:57,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:21:57,454 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:21:57,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 19:21:57,454 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:21:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:21:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash -307664421, now seen corresponding path program 1 times [2021-10-13 19:21:57,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:21:57,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946000071] [2021-10-13 19:21:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:57,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:21:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:57,518 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 19:21:57,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:21:57,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946000071] [2021-10-13 19:21:57,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946000071] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:21:57,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873412361] [2021-10-13 19:21:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:21:57,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:21:57,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:21:57,522 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 19:21:57,554 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 19:21:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:21:57,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 19:21:57,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:21:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:21:57,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873412361] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:21:57,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:21:57,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-13 19:21:57,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577598593] [2021-10-13 19:21:57,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:21:57,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:21:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:21:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:21:57,746 INFO L87 Difference]: Start difference. First operand 48114 states and 268523 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:00,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:00,473 INFO L93 Difference]: Finished difference Result 80921 states and 439826 transitions. [2021-10-13 19:22:00,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:22:00,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:00,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:02,144 INFO L225 Difference]: With dead ends: 80921 [2021-10-13 19:22:02,145 INFO L226 Difference]: Without dead ends: 80921 [2021-10-13 19:22:02,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:22:02,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80921 states. [2021-10-13 19:22:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80921 to 65071. [2021-10-13 19:22:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65071 states, 64424 states have (on average 5.806671426797466) internal successors, (374089), 65070 states have internal predecessors, (374089), 0 states have call successors, (0), 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 19:22:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65071 states to 65071 states and 374089 transitions. [2021-10-13 19:22:06,515 INFO L78 Accepts]: Start accepts. Automaton has 65071 states and 374089 transitions. Word has length 12 [2021-10-13 19:22:06,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:06,515 INFO L470 AbstractCegarLoop]: Abstraction has 65071 states and 374089 transitions. [2021-10-13 19:22:06,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 65071 states and 374089 transitions. [2021-10-13 19:22:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:06,517 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:06,517 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:06,542 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 19:22:06,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:22:06,727 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:06,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:06,728 INFO L82 PathProgramCache]: Analyzing trace with hash -307595809, now seen corresponding path program 1 times [2021-10-13 19:22:06,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:06,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592029306] [2021-10-13 19:22:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:06,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:06,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:06,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592029306] [2021-10-13 19:22:06,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592029306] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:22:06,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:22:06,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:22:06,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379817959] [2021-10-13 19:22:06,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:22:06,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:22:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:22:06,763 INFO L87 Difference]: Start difference. First operand 65071 states and 374089 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:08,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:08,519 INFO L93 Difference]: Finished difference Result 62926 states and 359172 transitions. [2021-10-13 19:22:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:22:08,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:08,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:09,538 INFO L225 Difference]: With dead ends: 62926 [2021-10-13 19:22:09,539 INFO L226 Difference]: Without dead ends: 62926 [2021-10-13 19:22:09,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:22:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62926 states. [2021-10-13 19:22:11,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62926 to 62926. [2021-10-13 19:22:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62926 states, 62351 states have (on average 5.760484996231015) internal successors, (359172), 62925 states have internal predecessors, (359172), 0 states have call successors, (0), 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 19:22:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62926 states to 62926 states and 359172 transitions. [2021-10-13 19:22:13,526 INFO L78 Accepts]: Start accepts. Automaton has 62926 states and 359172 transitions. Word has length 12 [2021-10-13 19:22:13,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:13,526 INFO L470 AbstractCegarLoop]: Abstraction has 62926 states and 359172 transitions. [2021-10-13 19:22:13,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 62926 states and 359172 transitions. [2021-10-13 19:22:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:13,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:13,528 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:13,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 19:22:13,529 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:13,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:13,529 INFO L82 PathProgramCache]: Analyzing trace with hash -307595808, now seen corresponding path program 1 times [2021-10-13 19:22:13,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:13,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452051236] [2021-10-13 19:22:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:13,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:13,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:13,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:13,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452051236] [2021-10-13 19:22:13,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452051236] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:22:13,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026962712] [2021-10-13 19:22:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:13,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:22:13,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:22:13,624 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 19:22:13,628 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 19:22:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:13,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:22:13,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:22:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:13,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026962712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:22:13,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:22:13,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-13 19:22:13,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219434843] [2021-10-13 19:22:13,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:22:13,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:13,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:22:13,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:22:13,784 INFO L87 Difference]: Start difference. First operand 62926 states and 359172 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:22:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:15,957 INFO L93 Difference]: Finished difference Result 114194 states and 623082 transitions. [2021-10-13 19:22:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:22:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:17,824 INFO L225 Difference]: With dead ends: 114194 [2021-10-13 19:22:17,825 INFO L226 Difference]: Without dead ends: 114194 [2021-10-13 19:22:17,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:22:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114194 states. [2021-10-13 19:22:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114194 to 83976. [2021-10-13 19:22:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83976 states, 83401 states have (on average 5.863490845433508) internal successors, (489021), 83975 states have internal predecessors, (489021), 0 states have call successors, (0), 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 19:22:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83976 states to 83976 states and 489021 transitions. [2021-10-13 19:22:24,641 INFO L78 Accepts]: Start accepts. Automaton has 83976 states and 489021 transitions. Word has length 12 [2021-10-13 19:22:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:24,641 INFO L470 AbstractCegarLoop]: Abstraction has 83976 states and 489021 transitions. [2021-10-13 19:22:24,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:22:24,642 INFO L276 IsEmpty]: Start isEmpty. Operand 83976 states and 489021 transitions. [2021-10-13 19:22:24,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:24,644 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:24,644 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:24,681 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 19:22:24,859 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,SelfDestructingSolverStorable22 [2021-10-13 19:22:24,859 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:24,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:24,860 INFO L82 PathProgramCache]: Analyzing trace with hash 156634871, now seen corresponding path program 1 times [2021-10-13 19:22:24,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:24,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469923955] [2021-10-13 19:22:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:24,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:24,950 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 19:22:24,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:24,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469923955] [2021-10-13 19:22:24,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469923955] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:22:24,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777700966] [2021-10-13 19:22:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:24,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:22:24,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:22:24,957 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 19:22:24,975 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 19:22:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:25,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:22:25,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:22:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:25,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777700966] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:22:25,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:22:25,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-10-13 19:22:25,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660961636] [2021-10-13 19:22:25,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:22:25,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:22:25,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:22:25,144 INFO L87 Difference]: Start difference. First operand 83976 states and 489021 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:26,791 INFO L93 Difference]: Finished difference Result 77974 states and 453125 transitions. [2021-10-13 19:22:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:22:26,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:26,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:27,737 INFO L225 Difference]: With dead ends: 77974 [2021-10-13 19:22:27,737 INFO L226 Difference]: Without dead ends: 77974 [2021-10-13 19:22:27,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:22:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77974 states. [2021-10-13 19:22:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77974 to 77974. [2021-10-13 19:22:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77974 states, 77463 states have (on average 5.849566889999096) internal successors, (453125), 77973 states have internal predecessors, (453125), 0 states have call successors, (0), 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 19:22:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77974 states to 77974 states and 453125 transitions. [2021-10-13 19:22:32,888 INFO L78 Accepts]: Start accepts. Automaton has 77974 states and 453125 transitions. Word has length 12 [2021-10-13 19:22:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:32,890 INFO L470 AbstractCegarLoop]: Abstraction has 77974 states and 453125 transitions. [2021-10-13 19:22:32,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:32,891 INFO L276 IsEmpty]: Start isEmpty. Operand 77974 states and 453125 transitions. [2021-10-13 19:22:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:32,896 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:32,896 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:32,941 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 19:22:33,110 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,SelfDestructingSolverStorable23 [2021-10-13 19:22:33,111 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:33,112 INFO L82 PathProgramCache]: Analyzing trace with hash 156634873, now seen corresponding path program 1 times [2021-10-13 19:22:33,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:33,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631420053] [2021-10-13 19:22:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:33,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:33,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:33,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:33,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631420053] [2021-10-13 19:22:33,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631420053] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:22:33,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:22:33,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:22:33,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684538726] [2021-10-13 19:22:33,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:22:33,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:22:33,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:22:33,160 INFO L87 Difference]: Start difference. First operand 77974 states and 453125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:35,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:35,426 INFO L93 Difference]: Finished difference Result 71972 states and 417229 transitions. [2021-10-13 19:22:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:22:35,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:36,250 INFO L225 Difference]: With dead ends: 71972 [2021-10-13 19:22:36,251 INFO L226 Difference]: Without dead ends: 71972 [2021-10-13 19:22:36,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:22:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71972 states. [2021-10-13 19:22:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71972 to 71972. [2021-10-13 19:22:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71972 states, 71525 states have (on average 5.833331003145753) internal successors, (417229), 71971 states have internal predecessors, (417229), 0 states have call successors, (0), 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 19:22:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71972 states to 71972 states and 417229 transitions. [2021-10-13 19:22:40,283 INFO L78 Accepts]: Start accepts. Automaton has 71972 states and 417229 transitions. Word has length 12 [2021-10-13 19:22:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:40,283 INFO L470 AbstractCegarLoop]: Abstraction has 71972 states and 417229 transitions. [2021-10-13 19:22:40,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 71972 states and 417229 transitions. [2021-10-13 19:22:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:40,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:40,295 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:40,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 19:22:40,295 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:40,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:40,296 INFO L82 PathProgramCache]: Analyzing trace with hash 156634979, now seen corresponding path program 1 times [2021-10-13 19:22:40,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:40,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328905372] [2021-10-13 19:22:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:40,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:40,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:40,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328905372] [2021-10-13 19:22:40,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328905372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:22:40,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:22:40,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:22:40,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425881346] [2021-10-13 19:22:40,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:22:40,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:40,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:22:40,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:22:40,376 INFO L87 Difference]: Start difference. First operand 71972 states and 417229 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:42,040 INFO L93 Difference]: Finished difference Result 64838 states and 363414 transitions. [2021-10-13 19:22:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:22:42,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:43,166 INFO L225 Difference]: With dead ends: 64838 [2021-10-13 19:22:43,166 INFO L226 Difference]: Without dead ends: 64739 [2021-10-13 19:22:43,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:22:43,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64739 states. [2021-10-13 19:22:45,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64739 to 60379. [2021-10-13 19:22:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60379 states, 59932 states have (on average 5.690315691116599) internal successors, (341032), 60378 states have internal predecessors, (341032), 0 states have call successors, (0), 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 19:22:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60379 states to 60379 states and 341032 transitions. [2021-10-13 19:22:47,177 INFO L78 Accepts]: Start accepts. Automaton has 60379 states and 341032 transitions. Word has length 12 [2021-10-13 19:22:47,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:47,177 INFO L470 AbstractCegarLoop]: Abstraction has 60379 states and 341032 transitions. [2021-10-13 19:22:47,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand 60379 states and 341032 transitions. [2021-10-13 19:22:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:47,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:47,180 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:47,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 19:22:47,180 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:47,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1885011828, now seen corresponding path program 2 times [2021-10-13 19:22:47,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:47,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633592172] [2021-10-13 19:22:47,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:47,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:47,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:47,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633592172] [2021-10-13 19:22:47,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633592172] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:22:47,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:22:47,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:22:47,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154511733] [2021-10-13 19:22:47,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:22:47,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:22:47,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:22:47,402 INFO L87 Difference]: Start difference. First operand 60379 states and 341032 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:49,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:49,238 INFO L93 Difference]: Finished difference Result 55507 states and 309901 transitions. [2021-10-13 19:22:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:22:49,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-13 19:22:49,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:50,030 INFO L225 Difference]: With dead ends: 55507 [2021-10-13 19:22:50,031 INFO L226 Difference]: Without dead ends: 55497 [2021-10-13 19:22:50,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 73.1ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:22:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55497 states. [2021-10-13 19:22:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55497 to 54003. [2021-10-13 19:22:52,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54003 states, 53556 states have (on average 5.67777653297483) internal successors, (304079), 54002 states have internal predecessors, (304079), 0 states have call successors, (0), 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 19:22:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54003 states to 54003 states and 304079 transitions. [2021-10-13 19:22:53,783 INFO L78 Accepts]: Start accepts. Automaton has 54003 states and 304079 transitions. Word has length 12 [2021-10-13 19:22:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:22:53,784 INFO L470 AbstractCegarLoop]: Abstraction has 54003 states and 304079 transitions. [2021-10-13 19:22:53,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:22:53,786 INFO L276 IsEmpty]: Start isEmpty. Operand 54003 states and 304079 transitions. [2021-10-13 19:22:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:22:53,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:22:53,805 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:22:53,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 19:22:53,805 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:22:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:22:53,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1150639736, now seen corresponding path program 1 times [2021-10-13 19:22:53,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:22:53,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693309722] [2021-10-13 19:22:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:53,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:22:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:54,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:22:54,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693309722] [2021-10-13 19:22:54,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693309722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:22:54,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971649947] [2021-10-13 19:22:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:22:54,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:22:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:22:54,029 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 19:22:54,055 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 19:22:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:22:54,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 19:22:54,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:22:54,241 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 19:22:54,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:22:54,282 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 19:22:54,339 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:22:54,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:22:54,391 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:22:54,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:22:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:22:54,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971649947] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:22:54,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:22:54,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-13 19:22:54,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76254793] [2021-10-13 19:22:54,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:22:54,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:22:54,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:22:54,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:22:54,432 INFO L87 Difference]: Start difference. First operand 54003 states and 304079 transitions. Second operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 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 19:22:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:22:56,544 INFO L93 Difference]: Finished difference Result 56686 states and 314292 transitions. [2021-10-13 19:22:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:22:56,546 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 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 12 [2021-10-13 19:22:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:22:57,114 INFO L225 Difference]: With dead ends: 56686 [2021-10-13 19:22:57,114 INFO L226 Difference]: Without dead ends: 56686 [2021-10-13 19:22:57,114 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 474.2ms TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:22:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56686 states. [2021-10-13 19:22:59,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56686 to 54003. [2021-10-13 19:22:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54003 states, 53556 states have (on average 5.672735081036672) internal successors, (303809), 54002 states have internal predecessors, (303809), 0 states have call successors, (0), 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 19:23:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54003 states to 54003 states and 303809 transitions. [2021-10-13 19:23:00,693 INFO L78 Accepts]: Start accepts. Automaton has 54003 states and 303809 transitions. Word has length 12 [2021-10-13 19:23:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:00,694 INFO L470 AbstractCegarLoop]: Abstraction has 54003 states and 303809 transitions. [2021-10-13 19:23:00,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 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 19:23:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 54003 states and 303809 transitions. [2021-10-13 19:23:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:00,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:00,696 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:00,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 19:23:00,909 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,SelfDestructingSolverStorable27 [2021-10-13 19:23:00,909 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:00,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:00,911 INFO L82 PathProgramCache]: Analyzing trace with hash 829873579, now seen corresponding path program 2 times [2021-10-13 19:23:00,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:00,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701653065] [2021-10-13 19:23:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:00,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:23:00,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:00,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701653065] [2021-10-13 19:23:00,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701653065] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:00,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873660873] [2021-10-13 19:23:00,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:23:00,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:00,957 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 19:23:00,978 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 19:23:01,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:23:01,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:23:01,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:23:01,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:01,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 19:23:01,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873660873] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:01,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:01,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2021-10-13 19:23:01,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100207178] [2021-10-13 19:23:01,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:23:01,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:01,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:23:01,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:23:01,130 INFO L87 Difference]: Start difference. First operand 54003 states and 303809 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 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 19:23:02,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:02,884 INFO L93 Difference]: Finished difference Result 91665 states and 465351 transitions. [2021-10-13 19:23:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:23:02,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 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 13 [2021-10-13 19:23:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:04,205 INFO L225 Difference]: With dead ends: 91665 [2021-10-13 19:23:04,205 INFO L226 Difference]: Without dead ends: 91565 [2021-10-13 19:23:04,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 32.5ms TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:23:04,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91565 states. [2021-10-13 19:23:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91565 to 30946. [2021-10-13 19:23:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30946 states, 30555 states have (on average 5.2080837833415154) internal successors, (159133), 30945 states have internal predecessors, (159133), 0 states have call successors, (0), 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 19:23:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30946 states to 30946 states and 159133 transitions. [2021-10-13 19:23:07,364 INFO L78 Accepts]: Start accepts. Automaton has 30946 states and 159133 transitions. Word has length 13 [2021-10-13 19:23:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:07,365 INFO L470 AbstractCegarLoop]: Abstraction has 30946 states and 159133 transitions. [2021-10-13 19:23:07,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 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 19:23:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 30946 states and 159133 transitions. [2021-10-13 19:23:07,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:07,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:07,367 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:07,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-13 19:23:07,582 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,SelfDestructingSolverStorable28 [2021-10-13 19:23:07,583 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:07,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:07,584 INFO L82 PathProgramCache]: Analyzing trace with hash -944751572, now seen corresponding path program 1 times [2021-10-13 19:23:07,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:07,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775537265] [2021-10-13 19:23:07,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:07,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:07,647 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 19:23:07,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:07,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775537265] [2021-10-13 19:23:07,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775537265] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:07,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189138273] [2021-10-13 19:23:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:07,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:07,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:07,649 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 19:23:07,666 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 19:23:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:07,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:23:07,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:07,921 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 19:23:07,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189138273] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:07,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:07,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 19:23:07,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295779684] [2021-10-13 19:23:07,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 19:23:07,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 19:23:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:23:07,926 INFO L87 Difference]: Start difference. First operand 30946 states and 159133 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 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 19:23:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:08,303 INFO L93 Difference]: Finished difference Result 23344 states and 115112 transitions. [2021-10-13 19:23:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:23:08,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 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 13 [2021-10-13 19:23:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:08,484 INFO L225 Difference]: With dead ends: 23344 [2021-10-13 19:23:08,484 INFO L226 Difference]: Without dead ends: 23169 [2021-10-13 19:23:08,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 91.9ms TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:23:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23169 states. [2021-10-13 19:23:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23169 to 22655. [2021-10-13 19:23:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22655 states, 22264 states have (on average 5.082914121451671) internal successors, (113166), 22654 states have internal predecessors, (113166), 0 states have call successors, (0), 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 19:23:09,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22655 states to 22655 states and 113166 transitions. [2021-10-13 19:23:09,671 INFO L78 Accepts]: Start accepts. Automaton has 22655 states and 113166 transitions. Word has length 13 [2021-10-13 19:23:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:09,672 INFO L470 AbstractCegarLoop]: Abstraction has 22655 states and 113166 transitions. [2021-10-13 19:23:09,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 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 19:23:09,672 INFO L276 IsEmpty]: Start isEmpty. Operand 22655 states and 113166 transitions. [2021-10-13 19:23:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:09,685 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:09,685 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:09,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-13 19:23:09,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:09,899 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:09,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:09,900 INFO L82 PathProgramCache]: Analyzing trace with hash 119972704, now seen corresponding path program 1 times [2021-10-13 19:23:09,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:09,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470958451] [2021-10-13 19:23:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:09,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:23:10,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:10,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470958451] [2021-10-13 19:23:10,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470958451] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:10,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845073465] [2021-10-13 19:23:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:10,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:10,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:10,139 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 19:23:10,146 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 19:23:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:10,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:23:10,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:10,825 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 19:23:10,913 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:10,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:23:10,988 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:10,989 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 24 treesize of output 23 [2021-10-13 19:23:11,093 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:11,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:23:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:11,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845073465] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:11,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:11,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 15 [2021-10-13 19:23:11,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6370875] [2021-10-13 19:23:11,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:23:11,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:11,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:23:11,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:23:11,130 INFO L87 Difference]: Start difference. First operand 22655 states and 113166 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 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 19:23:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:13,340 INFO L93 Difference]: Finished difference Result 40686 states and 178017 transitions. [2021-10-13 19:23:13,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:23:13,344 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 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 13 [2021-10-13 19:23:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:14,047 INFO L225 Difference]: With dead ends: 40686 [2021-10-13 19:23:14,048 INFO L226 Difference]: Without dead ends: 40680 [2021-10-13 19:23:14,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1097.6ms TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:23:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40680 states. [2021-10-13 19:23:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40680 to 22704. [2021-10-13 19:23:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22704 states, 22313 states have (on average 4.968852238605297) internal successors, (110870), 22703 states have internal predecessors, (110870), 0 states have call successors, (0), 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 19:23:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22704 states to 22704 states and 110870 transitions. [2021-10-13 19:23:15,584 INFO L78 Accepts]: Start accepts. Automaton has 22704 states and 110870 transitions. Word has length 13 [2021-10-13 19:23:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:15,584 INFO L470 AbstractCegarLoop]: Abstraction has 22704 states and 110870 transitions. [2021-10-13 19:23:15,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 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 19:23:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 22704 states and 110870 transitions. [2021-10-13 19:23:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:15,585 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:15,586 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:15,610 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 19:23:15,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:15,793 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:15,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1170026201, now seen corresponding path program 1 times [2021-10-13 19:23:15,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:15,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327697841] [2021-10-13 19:23:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:15,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:15,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:15,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327697841] [2021-10-13 19:23:15,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327697841] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:15,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416012453] [2021-10-13 19:23:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:15,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:15,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:15,870 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 19:23:15,888 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 19:23:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:16,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:23:16,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:16,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416012453] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:16,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:16,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-10-13 19:23:16,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703716695] [2021-10-13 19:23:16,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:23:16,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:16,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:23:16,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:23:16,135 INFO L87 Difference]: Start difference. First operand 22704 states and 110870 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:23:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:16,600 INFO L93 Difference]: Finished difference Result 22942 states and 103244 transitions. [2021-10-13 19:23:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:23:16,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 13 [2021-10-13 19:23:16,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:16,724 INFO L225 Difference]: With dead ends: 22942 [2021-10-13 19:23:16,724 INFO L226 Difference]: Without dead ends: 22723 [2021-10-13 19:23:16,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 85.1ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:23:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22723 states. [2021-10-13 19:23:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22723 to 20605. [2021-10-13 19:23:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20605 states, 20214 states have (on average 4.694172355793015) internal successors, (94888), 20604 states have internal predecessors, (94888), 0 states have call successors, (0), 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 19:23:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20605 states to 20605 states and 94888 transitions. [2021-10-13 19:23:17,646 INFO L78 Accepts]: Start accepts. Automaton has 20605 states and 94888 transitions. Word has length 13 [2021-10-13 19:23:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:17,646 INFO L470 AbstractCegarLoop]: Abstraction has 20605 states and 94888 transitions. [2021-10-13 19:23:17,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:23:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand 20605 states and 94888 transitions. [2021-10-13 19:23:17,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:17,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:17,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:17,672 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 19:23:17,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:17,854 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:17,855 INFO L82 PathProgramCache]: Analyzing trace with hash 558350585, now seen corresponding path program 1 times [2021-10-13 19:23:17,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:17,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012874523] [2021-10-13 19:23:17,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:17,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:18,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:18,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:18,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012874523] [2021-10-13 19:23:18,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012874523] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:18,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024927779] [2021-10-13 19:23:18,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:18,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:18,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:18,004 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 19:23:18,012 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 19:23:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:18,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:23:18,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:18,264 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 19:23:18,324 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:18,325 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 19:23:18,442 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:18,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:23:18,502 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:18,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:23:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:18,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024927779] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:18,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:18,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 15 [2021-10-13 19:23:18,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266234030] [2021-10-13 19:23:18,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:23:18,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:18,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:23:18,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:23:18,537 INFO L87 Difference]: Start difference. First operand 20605 states and 94888 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 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 19:23:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:20,238 INFO L93 Difference]: Finished difference Result 24764 states and 107198 transitions. [2021-10-13 19:23:20,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:23:20,239 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 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 13 [2021-10-13 19:23:20,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:20,366 INFO L225 Difference]: With dead ends: 24764 [2021-10-13 19:23:20,366 INFO L226 Difference]: Without dead ends: 24729 [2021-10-13 19:23:20,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 917.7ms TimeCoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:23:20,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24729 states. [2021-10-13 19:23:21,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24729 to 17858. [2021-10-13 19:23:21,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17858 states, 17467 states have (on average 4.60462586591859) internal successors, (80429), 17857 states have internal predecessors, (80429), 0 states have call successors, (0), 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 19:23:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17858 states to 17858 states and 80429 transitions. [2021-10-13 19:23:21,262 INFO L78 Accepts]: Start accepts. Automaton has 17858 states and 80429 transitions. Word has length 13 [2021-10-13 19:23:21,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:21,263 INFO L470 AbstractCegarLoop]: Abstraction has 17858 states and 80429 transitions. [2021-10-13 19:23:21,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 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 19:23:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 17858 states and 80429 transitions. [2021-10-13 19:23:21,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:21,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:21,264 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:21,295 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 19:23:21,465 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,SelfDestructingSolverStorable32 [2021-10-13 19:23:21,466 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:21,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1318198066, now seen corresponding path program 1 times [2021-10-13 19:23:21,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:21,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020432692] [2021-10-13 19:23:21,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:21,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:23:21,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:21,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020432692] [2021-10-13 19:23:21,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020432692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:21,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024698263] [2021-10-13 19:23:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:21,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:21,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:21,511 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 19:23:21,529 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 19:23:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:21,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:23:21,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:23:21,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024698263] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:21,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:21,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-13 19:23:21,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220295248] [2021-10-13 19:23:21,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:23:21,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:23:21,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:23:21,718 INFO L87 Difference]: Start difference. First operand 17858 states and 80429 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:23:22,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:22,144 INFO L93 Difference]: Finished difference Result 32560 states and 142991 transitions. [2021-10-13 19:23:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:23:22,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 13 [2021-10-13 19:23:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:23,250 INFO L225 Difference]: With dead ends: 32560 [2021-10-13 19:23:23,250 INFO L226 Difference]: Without dead ends: 32560 [2021-10-13 19:23:23,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:23:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32560 states. [2021-10-13 19:23:24,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32560 to 19714. [2021-10-13 19:23:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19714 states, 19323 states have (on average 4.8549914609532685) internal successors, (93813), 19713 states have internal predecessors, (93813), 0 states have call successors, (0), 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 19:23:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19714 states to 19714 states and 93813 transitions. [2021-10-13 19:23:24,596 INFO L78 Accepts]: Start accepts. Automaton has 19714 states and 93813 transitions. Word has length 13 [2021-10-13 19:23:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:24,597 INFO L470 AbstractCegarLoop]: Abstraction has 19714 states and 93813 transitions. [2021-10-13 19:23:24,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:23:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 19714 states and 93813 transitions. [2021-10-13 19:23:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:23:24,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:24,598 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:24,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-10-13 19:23:24,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:24,799 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:24,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:24,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1318198065, now seen corresponding path program 1 times [2021-10-13 19:23:24,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:24,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687401863] [2021-10-13 19:23:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:24,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:24,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:24,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687401863] [2021-10-13 19:23:24,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687401863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:24,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832612841] [2021-10-13 19:23:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:24,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:24,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:24,911 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 19:23:24,942 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 19:23:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:25,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 19:23:25,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:25,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832612841] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:25,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:25,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-10-13 19:23:25,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293654202] [2021-10-13 19:23:25,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 19:23:25,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:25,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 19:23:25,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:23:25,257 INFO L87 Difference]: Start difference. First operand 19714 states and 93813 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 19:23:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:26,125 INFO L93 Difference]: Finished difference Result 44103 states and 208659 transitions. [2021-10-13 19:23:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:23:26,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 13 [2021-10-13 19:23:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:26,884 INFO L225 Difference]: With dead ends: 44103 [2021-10-13 19:23:26,884 INFO L226 Difference]: Without dead ends: 44073 [2021-10-13 19:23:26,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 172.8ms TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:23:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44073 states. [2021-10-13 19:23:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44073 to 33582. [2021-10-13 19:23:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33582 states, 33191 states have (on average 5.196950980687536) internal successors, (172492), 33581 states have internal predecessors, (172492), 0 states have call successors, (0), 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 19:23:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33582 states to 33582 states and 172492 transitions. [2021-10-13 19:23:28,464 INFO L78 Accepts]: Start accepts. Automaton has 33582 states and 172492 transitions. Word has length 13 [2021-10-13 19:23:28,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:28,464 INFO L470 AbstractCegarLoop]: Abstraction has 33582 states and 172492 transitions. [2021-10-13 19:23:28,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 19:23:28,465 INFO L276 IsEmpty]: Start isEmpty. Operand 33582 states and 172492 transitions. [2021-10-13 19:23:28,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:23:28,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:28,466 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:28,493 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 19:23:28,674 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,SelfDestructingSolverStorable34 [2021-10-13 19:23:28,675 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:28,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:28,676 INFO L82 PathProgramCache]: Analyzing trace with hash -617873435, now seen corresponding path program 2 times [2021-10-13 19:23:28,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:28,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714455808] [2021-10-13 19:23:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:28,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:28,770 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 19:23:28,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:28,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714455808] [2021-10-13 19:23:28,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714455808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:23:28,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:23:28,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:23:28,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966706313] [2021-10-13 19:23:28,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:23:28,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:28,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:23:28,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:23:28,773 INFO L87 Difference]: Start difference. First operand 33582 states and 172492 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 19:23:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:29,855 INFO L93 Difference]: Finished difference Result 32970 states and 169416 transitions. [2021-10-13 19:23:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:23:29,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 19:23:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:30,122 INFO L225 Difference]: With dead ends: 32970 [2021-10-13 19:23:30,123 INFO L226 Difference]: Without dead ends: 32970 [2021-10-13 19:23:30,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.7ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:23:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32970 states. [2021-10-13 19:23:31,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32970 to 32790. [2021-10-13 19:23:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32790 states, 32399 states have (on average 5.210531189234236) internal successors, (168816), 32789 states have internal predecessors, (168816), 0 states have call successors, (0), 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 19:23:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32790 states to 32790 states and 168816 transitions. [2021-10-13 19:23:32,173 INFO L78 Accepts]: Start accepts. Automaton has 32790 states and 168816 transitions. Word has length 14 [2021-10-13 19:23:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:32,174 INFO L470 AbstractCegarLoop]: Abstraction has 32790 states and 168816 transitions. [2021-10-13 19:23:32,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 19:23:32,174 INFO L276 IsEmpty]: Start isEmpty. Operand 32790 states and 168816 transitions. [2021-10-13 19:23:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:23:32,176 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:32,176 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:32,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-13 19:23:32,176 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:32,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1307447464, now seen corresponding path program 1 times [2021-10-13 19:23:32,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:32,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389310140] [2021-10-13 19:23:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:32,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:23:32,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:32,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389310140] [2021-10-13 19:23:32,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389310140] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:32,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012471962] [2021-10-13 19:23:32,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:32,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:32,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:32,269 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 19:23:32,271 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 19:23:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:32,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:23:32,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:23:32,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012471962] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:32,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:32,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-10-13 19:23:32,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958497883] [2021-10-13 19:23:32,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:23:32,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:23:32,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:23:32,550 INFO L87 Difference]: Start difference. First operand 32790 states and 168816 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:23:33,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:33,197 INFO L93 Difference]: Finished difference Result 33310 states and 170388 transitions. [2021-10-13 19:23:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:23:33,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:23:33,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:33,470 INFO L225 Difference]: With dead ends: 33310 [2021-10-13 19:23:33,471 INFO L226 Difference]: Without dead ends: 33310 [2021-10-13 19:23:33,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 83.4ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:23:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33310 states. [2021-10-13 19:23:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33310 to 32526. [2021-10-13 19:23:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32526 states, 32135 states have (on average 5.22271666407344) internal successors, (167832), 32525 states have internal predecessors, (167832), 0 states have call successors, (0), 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 19:23:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32526 states to 32526 states and 167832 transitions. [2021-10-13 19:23:35,698 INFO L78 Accepts]: Start accepts. Automaton has 32526 states and 167832 transitions. Word has length 14 [2021-10-13 19:23:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:35,698 INFO L470 AbstractCegarLoop]: Abstraction has 32526 states and 167832 transitions. [2021-10-13 19:23:35,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:23:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 32526 states and 167832 transitions. [2021-10-13 19:23:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:23:35,701 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:35,701 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:35,738 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 19:23:35,914 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,SelfDestructingSolverStorable36 [2021-10-13 19:23:35,914 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash 653150179, now seen corresponding path program 2 times [2021-10-13 19:23:35,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:35,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933567771] [2021-10-13 19:23:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:35,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:36,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:36,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933567771] [2021-10-13 19:23:36,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933567771] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:36,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539938438] [2021-10-13 19:23:36,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:23:36,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:36,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:36,282 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 19:23:36,284 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 19:23:36,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:23:36,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:23:36,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:23:36,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:36,692 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:23:36,692 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 935 treesize of output 901 [2021-10-13 19:23:39,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:23:39,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:23:39,846 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:23:39,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:23:40,063 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 22 treesize of output 18 [2021-10-13 19:23:40,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:23:40,120 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 23 treesize of output 22 [2021-10-13 19:23:40,190 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:40,190 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 19:23:40,250 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:40,250 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 19:23:40,288 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:40,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:23:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:40,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539938438] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:40,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:40,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:23:40,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50835782] [2021-10-13 19:23:40,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:23:40,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:40,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:23:40,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:23:40,326 INFO L87 Difference]: Start difference. First operand 32526 states and 167832 transitions. Second operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 19:23:42,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:42,810 INFO L93 Difference]: Finished difference Result 59611 states and 284506 transitions. [2021-10-13 19:23:42,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:23:42,811 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 14 [2021-10-13 19:23:42,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:43,206 INFO L225 Difference]: With dead ends: 59611 [2021-10-13 19:23:43,207 INFO L226 Difference]: Without dead ends: 59611 [2021-10-13 19:23:43,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1207.0ms TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:23:43,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59611 states. [2021-10-13 19:23:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59611 to 35562. [2021-10-13 19:23:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35562 states, 35171 states have (on average 5.347985556282164) internal successors, (188094), 35561 states have internal predecessors, (188094), 0 states have call successors, (0), 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 19:23:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35562 states to 35562 states and 188094 transitions. [2021-10-13 19:23:45,377 INFO L78 Accepts]: Start accepts. Automaton has 35562 states and 188094 transitions. Word has length 14 [2021-10-13 19:23:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:45,378 INFO L470 AbstractCegarLoop]: Abstraction has 35562 states and 188094 transitions. [2021-10-13 19:23:45,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 19:23:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 35562 states and 188094 transitions. [2021-10-13 19:23:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:23:45,380 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:45,380 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:45,410 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 19:23:45,594 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,SelfDestructingSolverStorable37 [2021-10-13 19:23:45,594 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:45,595 INFO L82 PathProgramCache]: Analyzing trace with hash 653150244, now seen corresponding path program 1 times [2021-10-13 19:23:45,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:45,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952686631] [2021-10-13 19:23:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:45,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:45,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:45,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952686631] [2021-10-13 19:23:45,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952686631] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:45,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359679779] [2021-10-13 19:23:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:45,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:45,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:45,841 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 19:23:45,867 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 19:23:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:46,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:23:46,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:46,225 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:23:46,226 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 19:23:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:23:49,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:23:49,479 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:23:49,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:23:49,718 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 20 treesize of output 16 [2021-10-13 19:23:49,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:23:49,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-13 19:23:49,840 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:49,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:23:49,899 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:49,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:23:49,931 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:49,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:23:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:49,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359679779] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:49,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:49,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:23:49,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792843052] [2021-10-13 19:23:49,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:23:49,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:49,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:23:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:23:49,978 INFO L87 Difference]: Start difference. First operand 35562 states and 188094 transitions. Second operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 19:23:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:52,661 INFO L93 Difference]: Finished difference Result 56407 states and 268292 transitions. [2021-10-13 19:23:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:23:52,667 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 14 [2021-10-13 19:23:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:53,320 INFO L225 Difference]: With dead ends: 56407 [2021-10-13 19:23:53,320 INFO L226 Difference]: Without dead ends: 56407 [2021-10-13 19:23:53,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1115.3ms TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:23:53,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56407 states. [2021-10-13 19:23:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56407 to 34862. [2021-10-13 19:23:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34862 states, 34471 states have (on average 5.271329523367468) internal successors, (181708), 34861 states have internal predecessors, (181708), 0 states have call successors, (0), 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 19:23:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34862 states to 34862 states and 181708 transitions. [2021-10-13 19:23:54,945 INFO L78 Accepts]: Start accepts. Automaton has 34862 states and 181708 transitions. Word has length 14 [2021-10-13 19:23:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:23:54,945 INFO L470 AbstractCegarLoop]: Abstraction has 34862 states and 181708 transitions. [2021-10-13 19:23:54,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 19:23:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 34862 states and 181708 transitions. [2021-10-13 19:23:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:23:54,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:23:54,947 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:23:54,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-13 19:23:55,147 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,SelfDestructingSolverStorable38 [2021-10-13 19:23:55,148 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:23:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:23:55,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2082614705, now seen corresponding path program 1 times [2021-10-13 19:23:55,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:23:55,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102772415] [2021-10-13 19:23:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:55,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:23:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:55,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:23:55,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102772415] [2021-10-13 19:23:55,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102772415] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:55,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136195151] [2021-10-13 19:23:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:23:55,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:23:55,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:23:55,331 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 19:23:55,350 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 19:23:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:23:55,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:23:55,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:23:55,676 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 19:23:56,118 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:56,118 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 24 treesize of output 23 [2021-10-13 19:23:56,271 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:23:56,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:23:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:23:56,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136195151] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:23:56,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:23:56,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2021-10-13 19:23:56,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971286355] [2021-10-13 19:23:56,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:23:56,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:23:56,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:23:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:23:56,364 INFO L87 Difference]: Start difference. First operand 34862 states and 181708 transitions. Second operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:23:59,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:23:59,275 INFO L93 Difference]: Finished difference Result 46003 states and 220112 transitions. [2021-10-13 19:23:59,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:23:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:23:59,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:23:59,648 INFO L225 Difference]: With dead ends: 46003 [2021-10-13 19:23:59,648 INFO L226 Difference]: Without dead ends: 46003 [2021-10-13 19:23:59,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 935.2ms TimeCoverageRelationStatistics Valid=305, Invalid=1335, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:23:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46003 states. [2021-10-13 19:24:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46003 to 34502. [2021-10-13 19:24:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34502 states, 34111 states have (on average 5.263785875524024) internal successors, (179553), 34501 states have internal predecessors, (179553), 0 states have call successors, (0), 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 19:24:01,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34502 states to 34502 states and 179553 transitions. [2021-10-13 19:24:01,722 INFO L78 Accepts]: Start accepts. Automaton has 34502 states and 179553 transitions. Word has length 14 [2021-10-13 19:24:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:01,723 INFO L470 AbstractCegarLoop]: Abstraction has 34502 states and 179553 transitions. [2021-10-13 19:24:01,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 34502 states and 179553 transitions. [2021-10-13 19:24:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:24:01,728 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:01,728 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:01,771 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 19:24:01,943 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,SelfDestructingSolverStorable39 [2021-10-13 19:24:01,944 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:01,945 INFO L82 PathProgramCache]: Analyzing trace with hash 504978252, now seen corresponding path program 1 times [2021-10-13 19:24:01,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:01,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262524582] [2021-10-13 19:24:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:01,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:02,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:02,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262524582] [2021-10-13 19:24:02,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262524582] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:02,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440571384] [2021-10-13 19:24:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:02,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:02,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:02,181 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 19:24:02,205 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 19:24:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:02,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:24:02,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:02,505 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 19:24:02,560 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:24:02,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:02,603 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:02,603 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 19:24:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:02,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440571384] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:02,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:02,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-13 19:24:02,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387560560] [2021-10-13 19:24:02,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 19:24:02,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:02,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 19:24:02,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:24:02,671 INFO L87 Difference]: Start difference. First operand 34502 states and 179553 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:24:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:03,592 INFO L93 Difference]: Finished difference Result 34907 states and 180804 transitions. [2021-10-13 19:24:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:24:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:24:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:04,441 INFO L225 Difference]: With dead ends: 34907 [2021-10-13 19:24:04,442 INFO L226 Difference]: Without dead ends: 34907 [2021-10-13 19:24:04,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 248.1ms TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:24:04,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34907 states. [2021-10-13 19:24:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34907 to 34502. [2021-10-13 19:24:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34502 states, 34111 states have (on average 5.263727243411216) internal successors, (179551), 34501 states have internal predecessors, (179551), 0 states have call successors, (0), 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 19:24:06,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34502 states to 34502 states and 179551 transitions. [2021-10-13 19:24:06,024 INFO L78 Accepts]: Start accepts. Automaton has 34502 states and 179551 transitions. Word has length 14 [2021-10-13 19:24:06,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:06,024 INFO L470 AbstractCegarLoop]: Abstraction has 34502 states and 179551 transitions. [2021-10-13 19:24:06,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 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 19:24:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 34502 states and 179551 transitions. [2021-10-13 19:24:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:24:06,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:06,026 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:06,050 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 19:24:06,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:06,227 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:06,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:06,228 INFO L82 PathProgramCache]: Analyzing trace with hash 504978310, now seen corresponding path program 1 times [2021-10-13 19:24:06,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:06,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893637006] [2021-10-13 19:24:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:06,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 19:24:06,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:06,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893637006] [2021-10-13 19:24:06,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893637006] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:24:06,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:24:06,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:24:06,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486428215] [2021-10-13 19:24:06,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:24:06,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:06,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:24:06,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:06,262 INFO L87 Difference]: Start difference. First operand 34502 states and 179551 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:24:07,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:07,210 INFO L93 Difference]: Finished difference Result 33534 states and 169975 transitions. [2021-10-13 19:24:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:24:07,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:24:07,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:07,446 INFO L225 Difference]: With dead ends: 33534 [2021-10-13 19:24:07,446 INFO L226 Difference]: Without dead ends: 33534 [2021-10-13 19:24:07,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:07,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33534 states. [2021-10-13 19:24:08,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33534 to 33534. [2021-10-13 19:24:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33534 states, 33199 states have (on average 5.11988312900991) internal successors, (169975), 33533 states have internal predecessors, (169975), 0 states have call successors, (0), 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 19:24:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33534 states to 33534 states and 169975 transitions. [2021-10-13 19:24:08,942 INFO L78 Accepts]: Start accepts. Automaton has 33534 states and 169975 transitions. Word has length 14 [2021-10-13 19:24:08,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:08,943 INFO L470 AbstractCegarLoop]: Abstraction has 33534 states and 169975 transitions. [2021-10-13 19:24:08,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:24:08,943 INFO L276 IsEmpty]: Start isEmpty. Operand 33534 states and 169975 transitions. [2021-10-13 19:24:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:24:08,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:08,946 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:08,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-13 19:24:08,947 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:08,947 INFO L82 PathProgramCache]: Analyzing trace with hash 504978312, now seen corresponding path program 1 times [2021-10-13 19:24:08,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:08,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418809056] [2021-10-13 19:24:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:08,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 19:24:09,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:09,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418809056] [2021-10-13 19:24:09,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418809056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:24:09,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:24:09,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:24:09,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431519864] [2021-10-13 19:24:09,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:24:09,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:24:09,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:09,074 INFO L87 Difference]: Start difference. First operand 33534 states and 169975 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:24:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:09,925 INFO L93 Difference]: Finished difference Result 32566 states and 160399 transitions. [2021-10-13 19:24:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:24:09,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:24:09,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:10,139 INFO L225 Difference]: With dead ends: 32566 [2021-10-13 19:24:10,139 INFO L226 Difference]: Without dead ends: 32550 [2021-10-13 19:24:10,141 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32550 states. [2021-10-13 19:24:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32550 to 25420. [2021-10-13 19:24:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25420 states, 25141 states have (on average 4.962173342349151) internal successors, (124754), 25419 states have internal predecessors, (124754), 0 states have call successors, (0), 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 19:24:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25420 states to 25420 states and 124754 transitions. [2021-10-13 19:24:11,445 INFO L78 Accepts]: Start accepts. Automaton has 25420 states and 124754 transitions. Word has length 14 [2021-10-13 19:24:11,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:11,445 INFO L470 AbstractCegarLoop]: Abstraction has 25420 states and 124754 transitions. [2021-10-13 19:24:11,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 19:24:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 25420 states and 124754 transitions. [2021-10-13 19:24:11,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:24:11,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:11,448 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:11,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-13 19:24:11,448 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:11,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:11,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1998456775, now seen corresponding path program 2 times [2021-10-13 19:24:11,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:11,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612739048] [2021-10-13 19:24:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:11,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:24:11,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:11,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612739048] [2021-10-13 19:24:11,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612739048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:11,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847605747] [2021-10-13 19:24:11,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:24:11,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:11,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:11,491 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 19:24:11,499 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 19:24:11,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:24:11,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:24:11,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:24:11,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 19:24:11,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847605747] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:11,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:11,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2021-10-13 19:24:11,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70536819] [2021-10-13 19:24:11,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:24:11,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:24:11,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:24:11,804 INFO L87 Difference]: Start difference. First operand 25420 states and 124754 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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 19:24:12,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:12,746 INFO L93 Difference]: Finished difference Result 51222 states and 230414 transitions. [2021-10-13 19:24:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:24:12,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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 15 [2021-10-13 19:24:12,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:13,047 INFO L225 Difference]: With dead ends: 51222 [2021-10-13 19:24:13,047 INFO L226 Difference]: Without dead ends: 50733 [2021-10-13 19:24:13,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.0ms TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:24:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50733 states. [2021-10-13 19:24:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50733 to 14255. [2021-10-13 19:24:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14255 states, 14011 states have (on average 4.528656055956034) internal successors, (63451), 14254 states have internal predecessors, (63451), 0 states have call successors, (0), 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 19:24:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14255 states to 14255 states and 63451 transitions. [2021-10-13 19:24:14,689 INFO L78 Accepts]: Start accepts. Automaton has 14255 states and 63451 transitions. Word has length 15 [2021-10-13 19:24:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:14,690 INFO L470 AbstractCegarLoop]: Abstraction has 14255 states and 63451 transitions. [2021-10-13 19:24:14,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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 19:24:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 14255 states and 63451 transitions. [2021-10-13 19:24:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:24:14,691 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:14,692 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:14,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-13 19:24:14,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-13 19:24:14,905 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:14,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1873254833, now seen corresponding path program 1 times [2021-10-13 19:24:14,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:14,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509825345] [2021-10-13 19:24:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:14,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:24:15,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:15,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509825345] [2021-10-13 19:24:15,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509825345] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:15,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981133867] [2021-10-13 19:24:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:15,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:15,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:15,022 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 19:24:15,053 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 19:24:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:15,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:24:15,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:15,395 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 19:24:15,448 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:15,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:15,511 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:15,511 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 19:24:15,604 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:15,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:15,649 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 19:24:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:24:15,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981133867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:15,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:15,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-13 19:24:15,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976386998] [2021-10-13 19:24:15,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:24:15,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:24:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:24:15,666 INFO L87 Difference]: Start difference. First operand 14255 states and 63451 transitions. Second operand has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:17,013 INFO L93 Difference]: Finished difference Result 20987 states and 94110 transitions. [2021-10-13 19:24:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:24:17,014 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 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 15 [2021-10-13 19:24:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:17,118 INFO L225 Difference]: With dead ends: 20987 [2021-10-13 19:24:17,118 INFO L226 Difference]: Without dead ends: 20904 [2021-10-13 19:24:17,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 605.2ms TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:24:17,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20904 states. [2021-10-13 19:24:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20904 to 16252. [2021-10-13 19:24:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16252 states, 15974 states have (on average 4.711531238262176) internal successors, (75262), 16251 states have internal predecessors, (75262), 0 states have call successors, (0), 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 19:24:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 75262 transitions. [2021-10-13 19:24:17,832 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 75262 transitions. Word has length 15 [2021-10-13 19:24:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:17,832 INFO L470 AbstractCegarLoop]: Abstraction has 16252 states and 75262 transitions. [2021-10-13 19:24:17,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 75262 transitions. [2021-10-13 19:24:17,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:24:17,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:17,833 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:17,859 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 19:24:18,034 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,SelfDestructingSolverStorable44 [2021-10-13 19:24:18,034 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:18,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1732138539, now seen corresponding path program 1 times [2021-10-13 19:24:18,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:18,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309325573] [2021-10-13 19:24:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:18,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:24:18,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:18,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309325573] [2021-10-13 19:24:18,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309325573] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:18,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512563376] [2021-10-13 19:24:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:18,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:18,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:18,199 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 19:24:18,223 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 19:24:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:18,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 19:24:18,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:18,554 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 19:24:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:24:18,589 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 21 treesize of output 20 [2021-10-13 19:24:18,638 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:18,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:18,681 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:18,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:18,727 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 19:24:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:24:18,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512563376] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:18,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:18,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-13 19:24:18,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3636695] [2021-10-13 19:24:18,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 19:24:18,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:18,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 19:24:18,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:24:18,732 INFO L87 Difference]: Start difference. First operand 16252 states and 75262 transitions. Second operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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 19:24:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:20,107 INFO L93 Difference]: Finished difference Result 19608 states and 89451 transitions. [2021-10-13 19:24:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:24:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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 15 [2021-10-13 19:24:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:20,248 INFO L225 Difference]: With dead ends: 19608 [2021-10-13 19:24:20,248 INFO L226 Difference]: Without dead ends: 19608 [2021-10-13 19:24:20,249 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 644.6ms TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:24:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19608 states. [2021-10-13 19:24:20,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19608 to 17082. [2021-10-13 19:24:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17082 states, 16804 states have (on average 4.752320875981909) internal successors, (79858), 17081 states have internal predecessors, (79858), 0 states have call successors, (0), 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 19:24:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17082 states to 17082 states and 79858 transitions. [2021-10-13 19:24:21,325 INFO L78 Accepts]: Start accepts. Automaton has 17082 states and 79858 transitions. Word has length 15 [2021-10-13 19:24:21,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:21,325 INFO L470 AbstractCegarLoop]: Abstraction has 17082 states and 79858 transitions. [2021-10-13 19:24:21,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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 19:24:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 17082 states and 79858 transitions. [2021-10-13 19:24:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:24:21,327 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:21,327 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:21,365 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 19:24:21,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:21,541 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:21,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:21,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1274196916, now seen corresponding path program 1 times [2021-10-13 19:24:21,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:21,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057214235] [2021-10-13 19:24:21,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:21,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:21,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:21,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057214235] [2021-10-13 19:24:21,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057214235] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:21,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860450204] [2021-10-13 19:24:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:21,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:21,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:21,769 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 19:24:21,790 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 19:24:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:22,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:24:22,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:22,166 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 19:24:22,224 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:24:22,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:22,283 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:22,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:22,338 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:22,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:22,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860450204] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:22,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:22,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-10-13 19:24:22,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979532307] [2021-10-13 19:24:22,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:24:22,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:22,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:24:22,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:24:22,402 INFO L87 Difference]: Start difference. First operand 17082 states and 79858 transitions. Second operand has 17 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 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 19:24:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:23,032 INFO L93 Difference]: Finished difference Result 17262 states and 80422 transitions. [2021-10-13 19:24:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:24:23,033 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 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 15 [2021-10-13 19:24:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:23,124 INFO L225 Difference]: With dead ends: 17262 [2021-10-13 19:24:23,124 INFO L226 Difference]: Without dead ends: 17262 [2021-10-13 19:24:23,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 366.5ms TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:24:23,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17262 states. [2021-10-13 19:24:23,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17262 to 17082. [2021-10-13 19:24:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17082 states, 16804 states have (on average 4.750535586765056) internal successors, (79828), 17081 states have internal predecessors, (79828), 0 states have call successors, (0), 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 19:24:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17082 states to 17082 states and 79828 transitions. [2021-10-13 19:24:23,863 INFO L78 Accepts]: Start accepts. Automaton has 17082 states and 79828 transitions. Word has length 15 [2021-10-13 19:24:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:23,863 INFO L470 AbstractCegarLoop]: Abstraction has 17082 states and 79828 transitions. [2021-10-13 19:24:23,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 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 19:24:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 17082 states and 79828 transitions. [2021-10-13 19:24:23,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:23,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:23,865 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:23,889 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 19:24:24,065 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,SelfDestructingSolverStorable46 [2021-10-13 19:24:24,065 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:24,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:24,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2137822952, now seen corresponding path program 1 times [2021-10-13 19:24:24,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:24,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400164074] [2021-10-13 19:24:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:24,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:24:24,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:24,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400164074] [2021-10-13 19:24:24,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400164074] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:24,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115356277] [2021-10-13 19:24:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:24,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:24,403 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 19:24:24,412 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 19:24:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:24,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:24:24,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:24,822 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 19:24:24,884 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:24,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:24,951 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:24,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:25,014 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:25,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:25,128 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:25,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:25,160 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 19:24:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:24:25,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115356277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:25,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:25,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2021-10-13 19:24:25,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120833850] [2021-10-13 19:24:25,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:24:25,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:25,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:24:25,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:24:25,167 INFO L87 Difference]: Start difference. First operand 17082 states and 79828 transitions. Second operand has 21 states, 20 states have (on average 1.5) internal successors, (30), 20 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 19:24:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:26,366 INFO L93 Difference]: Finished difference Result 20868 states and 94557 transitions. [2021-10-13 19:24:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:24:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.5) internal successors, (30), 20 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 16 [2021-10-13 19:24:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:26,476 INFO L225 Difference]: With dead ends: 20868 [2021-10-13 19:24:26,476 INFO L226 Difference]: Without dead ends: 20868 [2021-10-13 19:24:26,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 551.2ms TimeCoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:24:26,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20868 states. [2021-10-13 19:24:26,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20868 to 16060. [2021-10-13 19:24:26,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16060 states, 15782 states have (on average 4.667342542136612) internal successors, (73660), 16059 states have internal predecessors, (73660), 0 states have call successors, (0), 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 19:24:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16060 states to 16060 states and 73660 transitions. [2021-10-13 19:24:27,348 INFO L78 Accepts]: Start accepts. Automaton has 16060 states and 73660 transitions. Word has length 16 [2021-10-13 19:24:27,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:27,349 INFO L470 AbstractCegarLoop]: Abstraction has 16060 states and 73660 transitions. [2021-10-13 19:24:27,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.5) internal successors, (30), 20 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 19:24:27,349 INFO L276 IsEmpty]: Start isEmpty. Operand 16060 states and 73660 transitions. [2021-10-13 19:24:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:27,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:27,351 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:27,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-13 19:24:27,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-13 19:24:27,565 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:27,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:27,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1220308580, now seen corresponding path program 1 times [2021-10-13 19:24:27,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:27,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924501625] [2021-10-13 19:24:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:27,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:27,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:27,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924501625] [2021-10-13 19:24:27,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924501625] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:27,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571953884] [2021-10-13 19:24:27,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:27,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:27,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:27,734 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 19:24:27,743 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 19:24:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:28,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:24:28,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:28,195 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 19:24:28,249 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:28,249 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 24 treesize of output 23 [2021-10-13 19:24:28,311 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:28,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:28,457 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:28,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:28,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571953884] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:28,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:28,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 19 [2021-10-13 19:24:28,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784071890] [2021-10-13 19:24:28,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:24:28,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:24:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:24:28,495 INFO L87 Difference]: Start difference. First operand 16060 states and 73660 transitions. Second operand has 20 states, 20 states have (on average 1.6) internal successors, (32), 19 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 19:24:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:30,461 INFO L93 Difference]: Finished difference Result 31383 states and 126624 transitions. [2021-10-13 19:24:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:24:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 19 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 16 [2021-10-13 19:24:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:30,912 INFO L225 Difference]: With dead ends: 31383 [2021-10-13 19:24:30,912 INFO L226 Difference]: Without dead ends: 31359 [2021-10-13 19:24:30,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 849.5ms TimeCoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:24:30,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31359 states. [2021-10-13 19:24:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31359 to 16150. [2021-10-13 19:24:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16150 states, 15872 states have (on average 4.508820564516129) internal successors, (71564), 16149 states have internal predecessors, (71564), 0 states have call successors, (0), 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 19:24:31,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16150 states to 16150 states and 71564 transitions. [2021-10-13 19:24:31,860 INFO L78 Accepts]: Start accepts. Automaton has 16150 states and 71564 transitions. Word has length 16 [2021-10-13 19:24:31,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:31,860 INFO L470 AbstractCegarLoop]: Abstraction has 16150 states and 71564 transitions. [2021-10-13 19:24:31,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 19 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 19:24:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 16150 states and 71564 transitions. [2021-10-13 19:24:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:31,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:31,866 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:31,905 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 19:24:32,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-13 19:24:32,080 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:32,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:32,081 INFO L82 PathProgramCache]: Analyzing trace with hash 612209510, now seen corresponding path program 1 times [2021-10-13 19:24:32,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:32,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569042793] [2021-10-13 19:24:32,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:32,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:24:32,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:32,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569042793] [2021-10-13 19:24:32,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569042793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:24:32,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:24:32,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:24:32,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430346365] [2021-10-13 19:24:32,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:24:32,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:32,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:24:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:32,141 INFO L87 Difference]: Start difference. First operand 16150 states and 71564 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:24:32,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:32,275 INFO L93 Difference]: Finished difference Result 14495 states and 62946 transitions. [2021-10-13 19:24:32,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:24:32,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 16 [2021-10-13 19:24:32,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:32,345 INFO L225 Difference]: With dead ends: 14495 [2021-10-13 19:24:32,345 INFO L226 Difference]: Without dead ends: 14495 [2021-10-13 19:24:32,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:32,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14495 states. [2021-10-13 19:24:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14495 to 14495. [2021-10-13 19:24:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14495 states, 14287 states have (on average 4.40582347588717) internal successors, (62946), 14494 states have internal predecessors, (62946), 0 states have call successors, (0), 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 19:24:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14495 states to 14495 states and 62946 transitions. [2021-10-13 19:24:32,750 INFO L78 Accepts]: Start accepts. Automaton has 14495 states and 62946 transitions. Word has length 16 [2021-10-13 19:24:32,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:32,751 INFO L470 AbstractCegarLoop]: Abstraction has 14495 states and 62946 transitions. [2021-10-13 19:24:32,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:24:32,751 INFO L276 IsEmpty]: Start isEmpty. Operand 14495 states and 62946 transitions. [2021-10-13 19:24:32,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:32,753 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:32,753 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:32,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-13 19:24:32,753 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:32,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:32,753 INFO L82 PathProgramCache]: Analyzing trace with hash 612209511, now seen corresponding path program 1 times [2021-10-13 19:24:32,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:32,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580586203] [2021-10-13 19:24:32,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:32,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:24:32,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:32,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580586203] [2021-10-13 19:24:32,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580586203] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:24:32,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:24:32,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:24:32,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693360874] [2021-10-13 19:24:32,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:24:32,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:24:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:32,785 INFO L87 Difference]: Start difference. First operand 14495 states and 62946 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:24:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:33,178 INFO L93 Difference]: Finished difference Result 12940 states and 54932 transitions. [2021-10-13 19:24:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:24:33,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 16 [2021-10-13 19:24:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:33,272 INFO L225 Difference]: With dead ends: 12940 [2021-10-13 19:24:33,272 INFO L226 Difference]: Without dead ends: 12940 [2021-10-13 19:24:33,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:24:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12940 states. [2021-10-13 19:24:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12940 to 10853. [2021-10-13 19:24:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10853 states, 10705 states have (on average 4.265109761793554) internal successors, (45658), 10852 states have internal predecessors, (45658), 0 states have call successors, (0), 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 19:24:33,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10853 states to 10853 states and 45658 transitions. [2021-10-13 19:24:33,749 INFO L78 Accepts]: Start accepts. Automaton has 10853 states and 45658 transitions. Word has length 16 [2021-10-13 19:24:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:33,749 INFO L470 AbstractCegarLoop]: Abstraction has 10853 states and 45658 transitions. [2021-10-13 19:24:33,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:24:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 10853 states and 45658 transitions. [2021-10-13 19:24:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:33,753 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:33,753 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:33,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-13 19:24:33,753 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:33,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:33,754 INFO L82 PathProgramCache]: Analyzing trace with hash 612209444, now seen corresponding path program 1 times [2021-10-13 19:24:33,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:33,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210069472] [2021-10-13 19:24:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:33,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:33,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:33,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210069472] [2021-10-13 19:24:33,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210069472] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:33,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695919216] [2021-10-13 19:24:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:33,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:33,842 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 19:24:33,852 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 19:24:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:34,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 19:24:34,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:34,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695919216] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:34,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:34,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-10-13 19:24:34,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041906848] [2021-10-13 19:24:34,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:24:34,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:34,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:24:34,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:24:34,312 INFO L87 Difference]: Start difference. First operand 10853 states and 45658 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 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 19:24:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:34,819 INFO L93 Difference]: Finished difference Result 10617 states and 41862 transitions. [2021-10-13 19:24:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:24:34,819 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 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 16 [2021-10-13 19:24:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:34,861 INFO L225 Difference]: With dead ends: 10617 [2021-10-13 19:24:34,861 INFO L226 Difference]: Without dead ends: 10174 [2021-10-13 19:24:34,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 112.2ms TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:24:34,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10174 states. [2021-10-13 19:24:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10174 to 9869. [2021-10-13 19:24:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9869 states, 9721 states have (on average 4.057607242053287) internal successors, (39444), 9868 states have internal predecessors, (39444), 0 states have call successors, (0), 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 19:24:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9869 states to 9869 states and 39444 transitions. [2021-10-13 19:24:35,101 INFO L78 Accepts]: Start accepts. Automaton has 9869 states and 39444 transitions. Word has length 16 [2021-10-13 19:24:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:35,101 INFO L470 AbstractCegarLoop]: Abstraction has 9869 states and 39444 transitions. [2021-10-13 19:24:35,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 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 19:24:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9869 states and 39444 transitions. [2021-10-13 19:24:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:35,103 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:35,103 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:35,133 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 19:24:35,318 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,SelfDestructingSolverStorable51 [2021-10-13 19:24:35,319 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash -63368555, now seen corresponding path program 1 times [2021-10-13 19:24:35,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:35,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183107935] [2021-10-13 19:24:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:35,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:35,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:35,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183107935] [2021-10-13 19:24:35,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183107935] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:35,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542897551] [2021-10-13 19:24:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:35,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:35,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:35,512 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 19:24:35,518 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 19:24:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:35,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:24:35,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:36,023 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 19:24:36,090 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:36,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:36,231 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:36,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:36,343 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:36,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:36,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542897551] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:36,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:36,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 20 [2021-10-13 19:24:36,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126741156] [2021-10-13 19:24:36,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:24:36,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:36,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:24:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:24:36,388 INFO L87 Difference]: Start difference. First operand 9869 states and 39444 transitions. Second operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 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 19:24:38,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:38,099 INFO L93 Difference]: Finished difference Result 12175 states and 45815 transitions. [2021-10-13 19:24:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:24:38,099 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 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 16 [2021-10-13 19:24:38,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:38,142 INFO L225 Difference]: With dead ends: 12175 [2021-10-13 19:24:38,142 INFO L226 Difference]: Without dead ends: 11998 [2021-10-13 19:24:38,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 985.5ms TimeCoverageRelationStatistics Valid=199, Invalid=991, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:24:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11998 states. [2021-10-13 19:24:38,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11998 to 7643. [2021-10-13 19:24:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7643 states, 7495 states have (on average 3.9557038025350235) internal successors, (29648), 7642 states have internal predecessors, (29648), 0 states have call successors, (0), 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 19:24:38,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7643 states to 7643 states and 29648 transitions. [2021-10-13 19:24:38,357 INFO L78 Accepts]: Start accepts. Automaton has 7643 states and 29648 transitions. Word has length 16 [2021-10-13 19:24:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:38,357 INFO L470 AbstractCegarLoop]: Abstraction has 7643 states and 29648 transitions. [2021-10-13 19:24:38,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 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 19:24:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 7643 states and 29648 transitions. [2021-10-13 19:24:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:38,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:38,359 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:38,385 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 19:24:38,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:38,560 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:38,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:38,560 INFO L82 PathProgramCache]: Analyzing trace with hash -47102838, now seen corresponding path program 2 times [2021-10-13 19:24:38,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:38,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188353630] [2021-10-13 19:24:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:38,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 19:24:38,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:38,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188353630] [2021-10-13 19:24:38,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188353630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:38,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71475482] [2021-10-13 19:24:38,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:24:38,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:38,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:38,604 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 19:24:38,624 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 19:24:38,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:24:38,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:24:38,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 19:24:38,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:39,050 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 23 treesize of output 7 [2021-10-13 19:24:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 19:24:39,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71475482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:39,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:39,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2021-10-13 19:24:39,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380868035] [2021-10-13 19:24:39,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:24:39,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:24:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:24:39,059 INFO L87 Difference]: Start difference. First operand 7643 states and 29648 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 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 19:24:39,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:39,539 INFO L93 Difference]: Finished difference Result 24278 states and 95206 transitions. [2021-10-13 19:24:39,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:24:39,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 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 16 [2021-10-13 19:24:39,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:39,810 INFO L225 Difference]: With dead ends: 24278 [2021-10-13 19:24:39,811 INFO L226 Difference]: Without dead ends: 24278 [2021-10-13 19:24:39,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:24:39,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24278 states. [2021-10-13 19:24:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24278 to 12290. [2021-10-13 19:24:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12290 states, 12142 states have (on average 4.377285455443913) internal successors, (53149), 12289 states have internal predecessors, (53149), 0 states have call successors, (0), 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 19:24:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12290 states to 12290 states and 53149 transitions. [2021-10-13 19:24:40,205 INFO L78 Accepts]: Start accepts. Automaton has 12290 states and 53149 transitions. Word has length 16 [2021-10-13 19:24:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:40,206 INFO L470 AbstractCegarLoop]: Abstraction has 12290 states and 53149 transitions. [2021-10-13 19:24:40,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 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 19:24:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 12290 states and 53149 transitions. [2021-10-13 19:24:40,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:24:40,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:40,207 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:40,232 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 19:24:40,408 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,SelfDestructingSolverStorable53 [2021-10-13 19:24:40,408 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:40,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:40,409 INFO L82 PathProgramCache]: Analyzing trace with hash -47102837, now seen corresponding path program 2 times [2021-10-13 19:24:40,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:40,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507081372] [2021-10-13 19:24:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:40,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:40,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:40,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507081372] [2021-10-13 19:24:40,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507081372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:40,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149119459] [2021-10-13 19:24:40,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:24:40,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:40,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:40,510 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 19:24:40,523 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 19:24:40,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:24:40,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:24:40,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 19:24:40,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:41,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149119459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:41,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:41,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-13 19:24:41,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536172159] [2021-10-13 19:24:41,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:24:41,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:41,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:24:41,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:24:41,081 INFO L87 Difference]: Start difference. First operand 12290 states and 53149 transitions. Second operand has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 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 19:24:41,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:41,984 INFO L93 Difference]: Finished difference Result 23381 states and 99893 transitions. [2021-10-13 19:24:41,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:24:41,984 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 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 16 [2021-10-13 19:24:41,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:42,111 INFO L225 Difference]: With dead ends: 23381 [2021-10-13 19:24:42,111 INFO L226 Difference]: Without dead ends: 23311 [2021-10-13 19:24:42,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 210.8ms TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:24:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23311 states. [2021-10-13 19:24:42,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23311 to 19274. [2021-10-13 19:24:42,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19274 states, 19126 states have (on average 4.506640175677089) internal successors, (86194), 19273 states have internal predecessors, (86194), 0 states have call successors, (0), 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 19:24:42,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19274 states to 19274 states and 86194 transitions. [2021-10-13 19:24:42,999 INFO L78 Accepts]: Start accepts. Automaton has 19274 states and 86194 transitions. Word has length 16 [2021-10-13 19:24:42,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:42,999 INFO L470 AbstractCegarLoop]: Abstraction has 19274 states and 86194 transitions. [2021-10-13 19:24:42,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 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 19:24:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 19274 states and 86194 transitions. [2021-10-13 19:24:43,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:24:43,002 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:43,003 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:43,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2021-10-13 19:24:43,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:43,204 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:43,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:43,205 INFO L82 PathProgramCache]: Analyzing trace with hash 703320808, now seen corresponding path program 2 times [2021-10-13 19:24:43,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:43,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203228284] [2021-10-13 19:24:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:43,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:43,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:43,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203228284] [2021-10-13 19:24:43,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203228284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:43,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721453703] [2021-10-13 19:24:43,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:24:43,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:43,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:43,475 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 19:24:43,494 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 19:24:43,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:24:43,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:24:43,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:24:43,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:44,046 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:24:44,047 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 19:24:46,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:24:46,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:24:46,680 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:24:46,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:24:46,903 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 19 treesize of output 15 [2021-10-13 19:24:46,971 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:24:46,972 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 19:24:47,044 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:47,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:47,116 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:47,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:47,143 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:47,144 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 25 treesize of output 24 [2021-10-13 19:24:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:47,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721453703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:47,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:47,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-13 19:24:47,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868839086] [2021-10-13 19:24:47,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:24:47,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:47,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:24:47,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:24:47,218 INFO L87 Difference]: Start difference. First operand 19274 states and 86194 transitions. Second operand has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:48,750 INFO L93 Difference]: Finished difference Result 30176 states and 135466 transitions. [2021-10-13 19:24:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:24:48,751 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:48,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:48,990 INFO L225 Difference]: With dead ends: 30176 [2021-10-13 19:24:48,990 INFO L226 Difference]: Without dead ends: 30176 [2021-10-13 19:24:48,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 962.4ms TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:24:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30176 states. [2021-10-13 19:24:49,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30176 to 22262. [2021-10-13 19:24:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22262 states, 22114 states have (on average 4.627023604956136) internal successors, (102322), 22261 states have internal predecessors, (102322), 0 states have call successors, (0), 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 19:24:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22262 states to 22262 states and 102322 transitions. [2021-10-13 19:24:50,250 INFO L78 Accepts]: Start accepts. Automaton has 22262 states and 102322 transitions. Word has length 17 [2021-10-13 19:24:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:50,251 INFO L470 AbstractCegarLoop]: Abstraction has 22262 states and 102322 transitions. [2021-10-13 19:24:50,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 22262 states and 102322 transitions. [2021-10-13 19:24:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:24:50,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:50,255 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:50,290 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 19:24:50,468 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,SelfDestructingSolverStorable55 [2021-10-13 19:24:50,468 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:50,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:50,471 INFO L82 PathProgramCache]: Analyzing trace with hash 703320873, now seen corresponding path program 1 times [2021-10-13 19:24:50,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:50,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605566483] [2021-10-13 19:24:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:50,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:50,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:50,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605566483] [2021-10-13 19:24:50,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605566483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:50,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755695320] [2021-10-13 19:24:50,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:50,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:50,766 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 19:24:50,768 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 19:24:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:51,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:24:51,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:51,333 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 17 treesize of output 13 [2021-10-13 19:24:51,396 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:24:51,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:51,456 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:51,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:51,522 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:51,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:51,574 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:24:51,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:24:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:51,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755695320] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:51,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:51,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-13 19:24:51,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219683300] [2021-10-13 19:24:51,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:24:51,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:51,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:24:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:24:51,642 INFO L87 Difference]: Start difference. First operand 22262 states and 102322 transitions. Second operand has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:52,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:52,508 INFO L93 Difference]: Finished difference Result 28682 states and 128896 transitions. [2021-10-13 19:24:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:24:52,509 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:52,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:52,652 INFO L225 Difference]: With dead ends: 28682 [2021-10-13 19:24:52,652 INFO L226 Difference]: Without dead ends: 28682 [2021-10-13 19:24:52,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 523.3ms TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:24:52,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28682 states. [2021-10-13 19:24:53,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28682 to 22262. [2021-10-13 19:24:53,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22262 states, 22114 states have (on average 4.559464592565796) internal successors, (100828), 22261 states have internal predecessors, (100828), 0 states have call successors, (0), 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 19:24:53,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22262 states to 22262 states and 100828 transitions. [2021-10-13 19:24:53,955 INFO L78 Accepts]: Start accepts. Automaton has 22262 states and 100828 transitions. Word has length 17 [2021-10-13 19:24:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:53,956 INFO L470 AbstractCegarLoop]: Abstraction has 22262 states and 100828 transitions. [2021-10-13 19:24:53,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:24:53,957 INFO L276 IsEmpty]: Start isEmpty. Operand 22262 states and 100828 transitions. [2021-10-13 19:24:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:24:53,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:53,961 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:53,994 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 19:24:54,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:54,174 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:54,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:54,179 INFO L82 PathProgramCache]: Analyzing trace with hash 29123829, now seen corresponding path program 2 times [2021-10-13 19:24:54,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:54,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634266293] [2021-10-13 19:24:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:54,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:54,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:54,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634266293] [2021-10-13 19:24:54,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634266293] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:54,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211748985] [2021-10-13 19:24:54,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:24:54,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:54,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:54,339 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 19:24:54,361 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 19:24:54,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:24:54,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:24:54,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 19:24:54,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:55,025 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:24:55,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:24:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:55,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211748985] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:55,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:55,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-13 19:24:55,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977518648] [2021-10-13 19:24:55,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:24:55,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:55,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:24:55,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:24:55,127 INFO L87 Difference]: Start difference. First operand 22262 states and 100828 transitions. Second operand has 22 states, 22 states have (on average 1.5) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 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 19:24:56,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:24:56,172 INFO L93 Difference]: Finished difference Result 26617 states and 115382 transitions. [2021-10-13 19:24:56,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:24:56,173 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.5) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 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 19:24:56,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:24:56,369 INFO L225 Difference]: With dead ends: 26617 [2021-10-13 19:24:56,369 INFO L226 Difference]: Without dead ends: 26617 [2021-10-13 19:24:56,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 456.8ms TimeCoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:24:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26617 states. [2021-10-13 19:24:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26617 to 22092. [2021-10-13 19:24:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22092 states, 21944 states have (on average 4.559469558877142) internal successors, (100053), 22091 states have internal predecessors, (100053), 0 states have call successors, (0), 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 19:24:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22092 states to 22092 states and 100053 transitions. [2021-10-13 19:24:57,333 INFO L78 Accepts]: Start accepts. Automaton has 22092 states and 100053 transitions. Word has length 17 [2021-10-13 19:24:57,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:24:57,334 INFO L470 AbstractCegarLoop]: Abstraction has 22092 states and 100053 transitions. [2021-10-13 19:24:57,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.5) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 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 19:24:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 22092 states and 100053 transitions. [2021-10-13 19:24:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:24:57,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:24:57,336 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:24:57,361 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 19:24:57,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:57,537 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:24:57,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:24:57,538 INFO L82 PathProgramCache]: Analyzing trace with hash 44008527, now seen corresponding path program 3 times [2021-10-13 19:24:57,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:24:57,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17456826] [2021-10-13 19:24:57,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:24:57,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:24:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:24:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:58,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:24:58,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17456826] [2021-10-13 19:24:58,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17456826] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:58,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317793387] [2021-10-13 19:24:58,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:24:58,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:24:58,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:24:58,058 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 19:24:58,113 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 19:24:58,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:24:58,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:24:58,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:24:58,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:24:58,696 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 27 treesize of output 23 [2021-10-13 19:24:58,792 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:24:58,792 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 40 treesize of output 47 [2021-10-13 19:24:58,924 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:24:58,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-10-13 19:24:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:24:59,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317793387] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:24:59,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:24:59,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2021-10-13 19:24:59,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291370716] [2021-10-13 19:24:59,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:24:59,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:24:59,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:24:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:24:59,494 INFO L87 Difference]: Start difference. First operand 22092 states and 100053 transitions. Second operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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 19:25:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:03,305 INFO L93 Difference]: Finished difference Result 22245 states and 100350 transitions. [2021-10-13 19:25:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 19:25:03,306 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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 17 [2021-10-13 19:25:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:03,412 INFO L225 Difference]: With dead ends: 22245 [2021-10-13 19:25:03,412 INFO L226 Difference]: Without dead ends: 22245 [2021-10-13 19:25:03,413 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 3028.8ms TimeCoverageRelationStatistics Valid=497, Invalid=2695, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 19:25:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22245 states. [2021-10-13 19:25:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22245 to 22118. [2021-10-13 19:25:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 21970 states have (on average 4.556986800182067) internal successors, (100117), 22117 states have internal predecessors, (100117), 0 states have call successors, (0), 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 19:25:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 100117 transitions. [2021-10-13 19:25:04,350 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 100117 transitions. Word has length 17 [2021-10-13 19:25:04,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:04,350 INFO L470 AbstractCegarLoop]: Abstraction has 22118 states and 100117 transitions. [2021-10-13 19:25:04,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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 19:25:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 100117 transitions. [2021-10-13 19:25:04,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:25:04,354 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:04,354 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:04,393 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 19:25:04,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-10-13 19:25:04,561 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:04,563 INFO L82 PathProgramCache]: Analyzing trace with hash 44008464, now seen corresponding path program 2 times [2021-10-13 19:25:04,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:04,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153110416] [2021-10-13 19:25:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:04,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:04,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:04,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153110416] [2021-10-13 19:25:04,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153110416] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:04,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595529066] [2021-10-13 19:25:04,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:25:04,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:04,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:04,818 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 19:25:04,838 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 19:25:05,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:25:05,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:05,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:25:05,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:05,385 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 19:25:05,435 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:05,435 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 30 treesize of output 29 [2021-10-13 19:25:05,482 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:05,482 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 28 treesize of output 27 [2021-10-13 19:25:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:05,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595529066] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:05,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:05,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:25:05,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710047927] [2021-10-13 19:25:05,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:25:05,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:25:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:25:05,618 INFO L87 Difference]: Start difference. First operand 22118 states and 100117 transitions. Second operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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 19:25:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:06,630 INFO L93 Difference]: Finished difference Result 22193 states and 100258 transitions. [2021-10-13 19:25:06,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:25:06,631 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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 17 [2021-10-13 19:25:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:06,737 INFO L225 Difference]: With dead ends: 22193 [2021-10-13 19:25:06,737 INFO L226 Difference]: Without dead ends: 22193 [2021-10-13 19:25:06,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 637.7ms TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:25:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22193 states. [2021-10-13 19:25:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22193 to 22118. [2021-10-13 19:25:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 21970 states have (on average 4.556713700500683) internal successors, (100111), 22117 states have internal predecessors, (100111), 0 states have call successors, (0), 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 19:25:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 100111 transitions. [2021-10-13 19:25:07,725 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 100111 transitions. Word has length 17 [2021-10-13 19:25:07,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:07,725 INFO L470 AbstractCegarLoop]: Abstraction has 22118 states and 100111 transitions. [2021-10-13 19:25:07,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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 19:25:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 100111 transitions. [2021-10-13 19:25:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:25:07,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:07,729 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:07,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-13 19:25:07,933 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,SelfDestructingSolverStorable59 [2021-10-13 19:25:07,934 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:08,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:08,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1907970489, now seen corresponding path program 3 times [2021-10-13 19:25:08,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:08,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061456564] [2021-10-13 19:25:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:08,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:08,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:08,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061456564] [2021-10-13 19:25:08,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061456564] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:08,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63443935] [2021-10-13 19:25:08,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:25:08,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:08,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:08,501 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 19:25:08,510 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 19:25:08,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:25:08,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:08,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:25:08,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:09,048 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 27 treesize of output 23 [2021-10-13 19:25:09,134 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:25:09,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 47 [2021-10-13 19:25:09,275 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:09,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-10-13 19:25:09,414 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:09,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:09,957 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:09,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63443935] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:09,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:09,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2021-10-13 19:25:09,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633713102] [2021-10-13 19:25:09,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:25:09,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:09,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:25:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:25:09,960 INFO L87 Difference]: Start difference. First operand 22118 states and 100111 transitions. Second operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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 19:25:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:16,999 INFO L93 Difference]: Finished difference Result 27175 states and 116647 transitions. [2021-10-13 19:25:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 19:25:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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 18 [2021-10-13 19:25:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:17,130 INFO L225 Difference]: With dead ends: 27175 [2021-10-13 19:25:17,130 INFO L226 Difference]: Without dead ends: 27175 [2021-10-13 19:25:17,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3657.7ms TimeCoverageRelationStatistics Valid=542, Invalid=2880, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 19:25:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27175 states. [2021-10-13 19:25:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27175 to 22540. [2021-10-13 19:25:17,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22540 states, 22392 states have (on average 4.545418006430868) internal successors, (101781), 22539 states have internal predecessors, (101781), 0 states have call successors, (0), 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 19:25:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22540 states to 22540 states and 101781 transitions. [2021-10-13 19:25:17,928 INFO L78 Accepts]: Start accepts. Automaton has 22540 states and 101781 transitions. Word has length 18 [2021-10-13 19:25:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:17,928 INFO L470 AbstractCegarLoop]: Abstraction has 22540 states and 101781 transitions. [2021-10-13 19:25:17,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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 19:25:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 22540 states and 101781 transitions. [2021-10-13 19:25:17,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:25:17,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:17,933 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:17,962 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 19:25:18,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,43 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:18,134 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:18,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:18,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1907970552, now seen corresponding path program 2 times [2021-10-13 19:25:18,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:18,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217599129] [2021-10-13 19:25:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:18,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:18,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:18,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217599129] [2021-10-13 19:25:18,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217599129] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:18,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166139520] [2021-10-13 19:25:18,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:25:18,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:18,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:18,375 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 19:25:18,399 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 19:25:18,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:25:18,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:18,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:25:18,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:19,063 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 29 treesize of output 25 [2021-10-13 19:25:19,150 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:25:19,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 49 [2021-10-13 19:25:19,531 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:19,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 47 [2021-10-13 19:25:19,682 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:19,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-10-13 19:25:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:20,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166139520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:20,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:20,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2021-10-13 19:25:20,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521283726] [2021-10-13 19:25:20,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:25:20,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:25:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:25:20,222 INFO L87 Difference]: Start difference. First operand 22540 states and 101781 transitions. Second operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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 19:25:27,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:27,418 INFO L93 Difference]: Finished difference Result 27153 states and 116477 transitions. [2021-10-13 19:25:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 19:25:27,418 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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 18 [2021-10-13 19:25:27,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:27,543 INFO L225 Difference]: With dead ends: 27153 [2021-10-13 19:25:27,543 INFO L226 Difference]: Without dead ends: 27153 [2021-10-13 19:25:27,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3670.7ms TimeCoverageRelationStatistics Valid=542, Invalid=2880, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 19:25:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2021-10-13 19:25:28,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 22540. [2021-10-13 19:25:28,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22540 states, 22392 states have (on average 4.539880314397999) internal successors, (101657), 22539 states have internal predecessors, (101657), 0 states have call successors, (0), 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 19:25:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22540 states to 22540 states and 101657 transitions. [2021-10-13 19:25:28,334 INFO L78 Accepts]: Start accepts. Automaton has 22540 states and 101657 transitions. Word has length 18 [2021-10-13 19:25:28,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:28,335 INFO L470 AbstractCegarLoop]: Abstraction has 22540 states and 101657 transitions. [2021-10-13 19:25:28,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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 19:25:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand 22540 states and 101657 transitions. [2021-10-13 19:25:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:25:28,339 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:28,339 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:28,365 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 19:25:28,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:28,540 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:28,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:28,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1441391187, now seen corresponding path program 1 times [2021-10-13 19:25:28,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:28,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601881452] [2021-10-13 19:25:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:28,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 19:25:28,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:28,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601881452] [2021-10-13 19:25:28,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601881452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:28,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399173513] [2021-10-13 19:25:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:28,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:28,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:28,583 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 19:25:28,586 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 19:25:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:29,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:25:29,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 19:25:29,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399173513] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:25:29,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:25:29,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-13 19:25:29,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193256151] [2021-10-13 19:25:29,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:25:29,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:29,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:25:29,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:25:29,138 INFO L87 Difference]: Start difference. First operand 22540 states and 101657 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:25:29,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:29,705 INFO L93 Difference]: Finished difference Result 28902 states and 123136 transitions. [2021-10-13 19:25:29,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:25:29,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 18 [2021-10-13 19:25:29,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:29,928 INFO L225 Difference]: With dead ends: 28902 [2021-10-13 19:25:29,928 INFO L226 Difference]: Without dead ends: 28902 [2021-10-13 19:25:29,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:25:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28902 states. [2021-10-13 19:25:30,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28902 to 22032. [2021-10-13 19:25:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22032 states, 21914 states have (on average 4.413890663502784) internal successors, (96726), 22031 states have internal predecessors, (96726), 0 states have call successors, (0), 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 19:25:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22032 states to 22032 states and 96726 transitions. [2021-10-13 19:25:30,941 INFO L78 Accepts]: Start accepts. Automaton has 22032 states and 96726 transitions. Word has length 18 [2021-10-13 19:25:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:30,941 INFO L470 AbstractCegarLoop]: Abstraction has 22032 states and 96726 transitions. [2021-10-13 19:25:30,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 19:25:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 22032 states and 96726 transitions. [2021-10-13 19:25:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:25:30,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:30,946 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:30,972 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 19:25:31,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,45 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:31,146 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:31,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1500060624, now seen corresponding path program 1 times [2021-10-13 19:25:31,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:31,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084952499] [2021-10-13 19:25:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:31,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:25:31,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:31,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084952499] [2021-10-13 19:25:31,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084952499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:31,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764818358] [2021-10-13 19:25:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:31,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:31,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:31,224 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 19:25:31,226 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 19:25:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:31,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 19:25:31,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:25:31,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764818358] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:31,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:31,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:25:31,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78850334] [2021-10-13 19:25:31,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:25:31,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:25:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:25:31,893 INFO L87 Difference]: Start difference. First operand 22032 states and 96726 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:25:32,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:32,303 INFO L93 Difference]: Finished difference Result 22496 states and 98448 transitions. [2021-10-13 19:25:32,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:25:32,303 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 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 19 [2021-10-13 19:25:32,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:32,417 INFO L225 Difference]: With dead ends: 22496 [2021-10-13 19:25:32,417 INFO L226 Difference]: Without dead ends: 21866 [2021-10-13 19:25:32,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 117.6ms TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:25:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21866 states. [2021-10-13 19:25:33,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21866 to 21846. [2021-10-13 19:25:33,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21846 states, 21728 states have (on average 4.40960972017673) internal successors, (95812), 21845 states have internal predecessors, (95812), 0 states have call successors, (0), 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 19:25:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21846 states to 21846 states and 95812 transitions. [2021-10-13 19:25:33,365 INFO L78 Accepts]: Start accepts. Automaton has 21846 states and 95812 transitions. Word has length 19 [2021-10-13 19:25:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:33,365 INFO L470 AbstractCegarLoop]: Abstraction has 21846 states and 95812 transitions. [2021-10-13 19:25:33,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 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 19:25:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21846 states and 95812 transitions. [2021-10-13 19:25:33,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:25:33,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:33,371 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:33,399 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 19:25:33,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:33,572 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:33,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:33,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1192396768, now seen corresponding path program 2 times [2021-10-13 19:25:33,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:33,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692748883] [2021-10-13 19:25:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:33,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:33,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:33,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692748883] [2021-10-13 19:25:33,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692748883] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:33,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139667668] [2021-10-13 19:25:33,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:25:33,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:33,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:33,738 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 19:25:33,764 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 19:25:34,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:25:34,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:34,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 19:25:34,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:34,917 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:34,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:34,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139667668] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:34,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:34,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-13 19:25:34,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339996587] [2021-10-13 19:25:34,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:25:34,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:25:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:25:34,949 INFO L87 Difference]: Start difference. First operand 21846 states and 95812 transitions. Second operand has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 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 19:25:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:36,093 INFO L93 Difference]: Finished difference Result 28350 states and 119753 transitions. [2021-10-13 19:25:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:25:36,094 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 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 19 [2021-10-13 19:25:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:36,245 INFO L225 Difference]: With dead ends: 28350 [2021-10-13 19:25:36,245 INFO L226 Difference]: Without dead ends: 28310 [2021-10-13 19:25:36,245 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 434.1ms TimeCoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:25:36,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28310 states. [2021-10-13 19:25:37,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28310 to 21951. [2021-10-13 19:25:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21951 states, 21833 states have (on average 4.404525259927633) internal successors, (96164), 21950 states have internal predecessors, (96164), 0 states have call successors, (0), 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 19:25:37,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21951 states to 21951 states and 96164 transitions. [2021-10-13 19:25:37,159 INFO L78 Accepts]: Start accepts. Automaton has 21951 states and 96164 transitions. Word has length 19 [2021-10-13 19:25:37,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:37,159 INFO L470 AbstractCegarLoop]: Abstraction has 21951 states and 96164 transitions. [2021-10-13 19:25:37,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 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 19:25:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 21951 states and 96164 transitions. [2021-10-13 19:25:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:25:37,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:37,165 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:37,191 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 19:25:37,370 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,SelfDestructingSolverStorable64 [2021-10-13 19:25:37,371 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:37,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:37,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1581543657, now seen corresponding path program 3 times [2021-10-13 19:25:37,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:37,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566366012] [2021-10-13 19:25:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:37,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:37,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:37,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566366012] [2021-10-13 19:25:37,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566366012] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:37,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064144286] [2021-10-13 19:25:37,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:25:37,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:37,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:37,489 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 19:25:37,499 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 19:25:38,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:25:38,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:38,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 19:25:38,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:38,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064144286] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:38,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:38,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-10-13 19:25:38,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14412486] [2021-10-13 19:25:38,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 19:25:38,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:38,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 19:25:38,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:25:38,255 INFO L87 Difference]: Start difference. First operand 21951 states and 96164 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 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 19:25:39,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:39,151 INFO L93 Difference]: Finished difference Result 21133 states and 89499 transitions. [2021-10-13 19:25:39,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:25:39,151 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 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 19 [2021-10-13 19:25:39,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:39,240 INFO L225 Difference]: With dead ends: 21133 [2021-10-13 19:25:39,240 INFO L226 Difference]: Without dead ends: 20380 [2021-10-13 19:25:39,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 234.4ms TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:25:39,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20380 states. [2021-10-13 19:25:39,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20380 to 19981. [2021-10-13 19:25:39,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19981 states, 19863 states have (on average 4.295222272567084) internal successors, (85316), 19980 states have internal predecessors, (85316), 0 states have call successors, (0), 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 19:25:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19981 states to 19981 states and 85316 transitions. [2021-10-13 19:25:40,052 INFO L78 Accepts]: Start accepts. Automaton has 19981 states and 85316 transitions. Word has length 19 [2021-10-13 19:25:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:40,052 INFO L470 AbstractCegarLoop]: Abstraction has 19981 states and 85316 transitions. [2021-10-13 19:25:40,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 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 19:25:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 19981 states and 85316 transitions. [2021-10-13 19:25:40,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:25:40,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:40,056 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:40,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-13 19:25:40,257 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,SelfDestructingSolverStorable65 [2021-10-13 19:25:40,257 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:40,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:40,258 INFO L82 PathProgramCache]: Analyzing trace with hash -2078111464, now seen corresponding path program 3 times [2021-10-13 19:25:40,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:40,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027750342] [2021-10-13 19:25:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:40,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:40,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:40,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027750342] [2021-10-13 19:25:40,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027750342] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:40,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264119620] [2021-10-13 19:25:40,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:25:40,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:40,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:40,479 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 19:25:40,499 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 19:25:41,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:25:41,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:41,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 19:25:41,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:41,398 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:41,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:41,544 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:25:41,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:41,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264119620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:41,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:41,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-13 19:25:41,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858304507] [2021-10-13 19:25:41,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:25:41,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:25:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:25:41,587 INFO L87 Difference]: Start difference. First operand 19981 states and 85316 transitions. Second operand has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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 19:25:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:42,742 INFO L93 Difference]: Finished difference Result 17777 states and 74441 transitions. [2021-10-13 19:25:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:25:42,742 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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 19 [2021-10-13 19:25:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:42,821 INFO L225 Difference]: With dead ends: 17777 [2021-10-13 19:25:42,822 INFO L226 Difference]: Without dead ends: 17404 [2021-10-13 19:25:42,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 623.7ms TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:25:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17404 states. [2021-10-13 19:25:43,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17404 to 16063. [2021-10-13 19:25:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16063 states, 15945 states have (on average 4.247475697710881) internal successors, (67726), 16062 states have internal predecessors, (67726), 0 states have call successors, (0), 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 19:25:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16063 states to 16063 states and 67726 transitions. [2021-10-13 19:25:43,554 INFO L78 Accepts]: Start accepts. Automaton has 16063 states and 67726 transitions. Word has length 19 [2021-10-13 19:25:43,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:43,554 INFO L470 AbstractCegarLoop]: Abstraction has 16063 states and 67726 transitions. [2021-10-13 19:25:43,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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 19:25:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 16063 states and 67726 transitions. [2021-10-13 19:25:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:25:43,559 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:43,559 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:43,586 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 19:25:43,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-13 19:25:43,760 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:43,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:43,761 INFO L82 PathProgramCache]: Analyzing trace with hash -890179523, now seen corresponding path program 1 times [2021-10-13 19:25:43,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:43,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087144977] [2021-10-13 19:25:43,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:43,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:25:43,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:43,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087144977] [2021-10-13 19:25:43,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087144977] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:43,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926873566] [2021-10-13 19:25:43,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:43,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:43,875 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 19:25:43,894 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 19:25:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:44,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:25:44,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:44,609 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 19:25:44,676 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:25:44,677 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 26 treesize of output 25 [2021-10-13 19:25:44,740 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:25:44,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:25:44,859 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:25:44,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:25:44,954 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 19:25:44,973 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:25:44,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926873566] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:44,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:44,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 19 [2021-10-13 19:25:44,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651077269] [2021-10-13 19:25:44,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:25:44,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:44,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:25:44,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:25:44,976 INFO L87 Difference]: Start difference. First operand 16063 states and 67726 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 19 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 19:25:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:47,008 INFO L93 Difference]: Finished difference Result 24246 states and 102903 transitions. [2021-10-13 19:25:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:25:47,008 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 19 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 20 [2021-10-13 19:25:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:47,121 INFO L225 Difference]: With dead ends: 24246 [2021-10-13 19:25:47,121 INFO L226 Difference]: Without dead ends: 23569 [2021-10-13 19:25:47,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 991.7ms TimeCoverageRelationStatistics Valid=217, Invalid=1043, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:25:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23569 states. [2021-10-13 19:25:47,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23569 to 18240. [2021-10-13 19:25:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18240 states, 18122 states have (on average 4.396589780377441) internal successors, (79675), 18239 states have internal predecessors, (79675), 0 states have call successors, (0), 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 19:25:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18240 states to 18240 states and 79675 transitions. [2021-10-13 19:25:47,847 INFO L78 Accepts]: Start accepts. Automaton has 18240 states and 79675 transitions. Word has length 20 [2021-10-13 19:25:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:47,847 INFO L470 AbstractCegarLoop]: Abstraction has 18240 states and 79675 transitions. [2021-10-13 19:25:47,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 19 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 19:25:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand 18240 states and 79675 transitions. [2021-10-13 19:25:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:25:47,851 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:47,851 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:47,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-13 19:25:48,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-10-13 19:25:48,052 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:48,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1024579569, now seen corresponding path program 1 times [2021-10-13 19:25:48,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:48,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328351619] [2021-10-13 19:25:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:48,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:25:48,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:48,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328351619] [2021-10-13 19:25:48,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328351619] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:48,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936353030] [2021-10-13 19:25:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:48,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:48,281 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 19:25:48,303 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 19:25:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:48,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:25:48,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:48,986 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 19:25:49,040 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:49,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:25:49,098 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:25:49,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:49,153 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:25:49,154 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 24 treesize of output 23 [2021-10-13 19:25:49,244 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 19:25:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:25:49,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936353030] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:49,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:49,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-10-13 19:25:49,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357406364] [2021-10-13 19:25:49,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:25:49,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:49,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:25:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:25:49,248 INFO L87 Difference]: Start difference. First operand 18240 states and 79675 transitions. Second operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 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 19:25:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:50,521 INFO L93 Difference]: Finished difference Result 20698 states and 89816 transitions. [2021-10-13 19:25:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:25:50,522 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 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 20 [2021-10-13 19:25:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:50,609 INFO L225 Difference]: With dead ends: 20698 [2021-10-13 19:25:50,610 INFO L226 Difference]: Without dead ends: 20698 [2021-10-13 19:25:50,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 500.1ms TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:25:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20698 states. [2021-10-13 19:25:51,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20698 to 19008. [2021-10-13 19:25:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19008 states, 18890 states have (on average 4.4193223928004235) internal successors, (83481), 19007 states have internal predecessors, (83481), 0 states have call successors, (0), 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 19:25:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19008 states to 19008 states and 83481 transitions. [2021-10-13 19:25:51,437 INFO L78 Accepts]: Start accepts. Automaton has 19008 states and 83481 transitions. Word has length 20 [2021-10-13 19:25:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:51,437 INFO L470 AbstractCegarLoop]: Abstraction has 19008 states and 83481 transitions. [2021-10-13 19:25:51,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 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 19:25:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 19008 states and 83481 transitions. [2021-10-13 19:25:51,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:25:51,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:51,443 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:51,481 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 19:25:51,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,51 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:51,658 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:51,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:51,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1315736644, now seen corresponding path program 4 times [2021-10-13 19:25:51,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:51,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239859117] [2021-10-13 19:25:51,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:51,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:51,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:51,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239859117] [2021-10-13 19:25:51,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239859117] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:51,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434008222] [2021-10-13 19:25:51,965 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:25:51,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:51,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:51,967 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 19:25:51,974 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 19:25:52,511 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:25:52,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:52,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:25:52,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:52,672 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 19:25:52,737 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:52,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:52,801 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:52,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:25:52,869 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:52,870 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 19:25:52,934 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:52,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:53,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434008222] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:53,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:53,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-13 19:25:53,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840687397] [2021-10-13 19:25:53,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:25:53,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:25:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:25:53,091 INFO L87 Difference]: Start difference. First operand 19008 states and 83481 transitions. Second operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:25:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:25:54,903 INFO L93 Difference]: Finished difference Result 29500 states and 123463 transitions. [2021-10-13 19:25:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:25:54,904 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 20 [2021-10-13 19:25:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:25:55,312 INFO L225 Difference]: With dead ends: 29500 [2021-10-13 19:25:55,312 INFO L226 Difference]: Without dead ends: 29500 [2021-10-13 19:25:55,312 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1176.8ms TimeCoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:25:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29500 states. [2021-10-13 19:25:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29500 to 20304. [2021-10-13 19:25:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20304 states, 20186 states have (on average 4.418557416030913) internal successors, (89193), 20303 states have internal predecessors, (89193), 0 states have call successors, (0), 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 19:25:56,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20304 states to 20304 states and 89193 transitions. [2021-10-13 19:25:56,234 INFO L78 Accepts]: Start accepts. Automaton has 20304 states and 89193 transitions. Word has length 20 [2021-10-13 19:25:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:25:56,235 INFO L470 AbstractCegarLoop]: Abstraction has 20304 states and 89193 transitions. [2021-10-13 19:25:56,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:25:56,235 INFO L276 IsEmpty]: Start isEmpty. Operand 20304 states and 89193 transitions. [2021-10-13 19:25:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:25:56,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:25:56,241 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:25:56,282 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 19:25:56,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-13 19:25:56,456 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:25:56,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:25:56,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1315736581, now seen corresponding path program 2 times [2021-10-13 19:25:56,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:25:56,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68505906] [2021-10-13 19:25:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:25:56,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:25:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:25:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:56,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:25:56,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68505906] [2021-10-13 19:25:56,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68505906] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:56,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258077026] [2021-10-13 19:25:56,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:25:56,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:25:56,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:25:56,809 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 19:25:56,811 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 19:25:57,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:25:57,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:25:57,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:25:57,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:25:57,628 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 19:25:57,698 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:57,699 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 30 treesize of output 29 [2021-10-13 19:25:57,765 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:57,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:25:57,836 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:57,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:25:57,907 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:25:57,907 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 28 treesize of output 27 [2021-10-13 19:25:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:25:58,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258077026] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:25:58,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:25:58,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-13 19:25:58,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507650564] [2021-10-13 19:25:58,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:25:58,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:25:58,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:25:58,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:25:58,074 INFO L87 Difference]: Start difference. First operand 20304 states and 89193 transitions. Second operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:26:00,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:00,160 INFO L93 Difference]: Finished difference Result 28879 states and 120326 transitions. [2021-10-13 19:26:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:26:00,160 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 20 [2021-10-13 19:26:00,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:00,305 INFO L225 Difference]: With dead ends: 28879 [2021-10-13 19:26:00,305 INFO L226 Difference]: Without dead ends: 28879 [2021-10-13 19:26:00,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1217.6ms TimeCoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:26:00,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28879 states. [2021-10-13 19:26:00,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28879 to 20304. [2021-10-13 19:26:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20304 states, 20186 states have (on average 4.354354503120975) internal successors, (87897), 20303 states have internal predecessors, (87897), 0 states have call successors, (0), 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 19:26:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20304 states to 20304 states and 87897 transitions. [2021-10-13 19:26:01,212 INFO L78 Accepts]: Start accepts. Automaton has 20304 states and 87897 transitions. Word has length 20 [2021-10-13 19:26:01,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:01,212 INFO L470 AbstractCegarLoop]: Abstraction has 20304 states and 87897 transitions. [2021-10-13 19:26:01,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:26:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 20304 states and 87897 transitions. [2021-10-13 19:26:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:26:01,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:01,219 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:01,251 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 19:26:01,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,53 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:01,434 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1460857509, now seen corresponding path program 4 times [2021-10-13 19:26:01,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:01,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661381647] [2021-10-13 19:26:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:01,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:01,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:01,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661381647] [2021-10-13 19:26:01,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661381647] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:01,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873633778] [2021-10-13 19:26:01,745 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:26:01,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:01,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:01,746 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 19:26:01,770 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 19:26:02,370 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:26:02,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:02,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:26:02,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:02,524 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 19:26:02,593 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:02,593 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 30 treesize of output 29 [2021-10-13 19:26:02,658 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:02,658 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 28 treesize of output 27 [2021-10-13 19:26:02,726 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:02,726 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 28 treesize of output 27 [2021-10-13 19:26:02,787 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:02,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:26:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:02,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873633778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:02,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:02,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-13 19:26:02,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973174334] [2021-10-13 19:26:02,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:26:02,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:02,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:26:02,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:26:02,955 INFO L87 Difference]: Start difference. First operand 20304 states and 87897 transitions. Second operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:26:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:05,144 INFO L93 Difference]: Finished difference Result 32839 states and 141702 transitions. [2021-10-13 19:26:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:26:05,145 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 20 [2021-10-13 19:26:05,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:05,318 INFO L225 Difference]: With dead ends: 32839 [2021-10-13 19:26:05,318 INFO L226 Difference]: Without dead ends: 32839 [2021-10-13 19:26:05,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1206.5ms TimeCoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:26:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32839 states. [2021-10-13 19:26:06,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32839 to 22700. [2021-10-13 19:26:06,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22700 states, 22582 states have (on average 4.4463289345496415) internal successors, (100407), 22699 states have internal predecessors, (100407), 0 states have call successors, (0), 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 19:26:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22700 states to 22700 states and 100407 transitions. [2021-10-13 19:26:06,339 INFO L78 Accepts]: Start accepts. Automaton has 22700 states and 100407 transitions. Word has length 20 [2021-10-13 19:26:06,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:06,340 INFO L470 AbstractCegarLoop]: Abstraction has 22700 states and 100407 transitions. [2021-10-13 19:26:06,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:26:06,340 INFO L276 IsEmpty]: Start isEmpty. Operand 22700 states and 100407 transitions. [2021-10-13 19:26:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:26:06,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:06,346 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:06,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2021-10-13 19:26:06,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,54 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:06,561 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:06,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1460857574, now seen corresponding path program 2 times [2021-10-13 19:26:06,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:06,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406940540] [2021-10-13 19:26:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:06,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:06,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:06,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406940540] [2021-10-13 19:26:06,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406940540] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:06,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989397241] [2021-10-13 19:26:06,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:26:06,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:06,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:06,963 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 19:26:06,964 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 19:26:07,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:26:07,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:07,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:26:07,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:07,838 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:26:07,839 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 147 treesize of output 175 [2021-10-13 19:26:10,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:26:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:26:10,566 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:26:10,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:26:10,839 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 19:26:10,913 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:10,913 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 19:26:10,982 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:10,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:26:11,053 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:11,054 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 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:26:11,106 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:11,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:26:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:11,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989397241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:11,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:11,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:26:11,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12446764] [2021-10-13 19:26:11,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:26:11,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:11,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:26:11,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:26:11,281 INFO L87 Difference]: Start difference. First operand 22700 states and 100407 transitions. Second operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 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 19:26:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:13,966 INFO L93 Difference]: Finished difference Result 31641 states and 136645 transitions. [2021-10-13 19:26:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:26:13,967 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 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 20 [2021-10-13 19:26:13,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:14,141 INFO L225 Difference]: With dead ends: 31641 [2021-10-13 19:26:14,142 INFO L226 Difference]: Without dead ends: 31641 [2021-10-13 19:26:14,142 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1654.3ms TimeCoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:26:14,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31641 states. [2021-10-13 19:26:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31641 to 22700. [2021-10-13 19:26:15,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22700 states, 22582 states have (on average 4.393277831901514) internal successors, (99209), 22699 states have internal predecessors, (99209), 0 states have call successors, (0), 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 19:26:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22700 states to 22700 states and 99209 transitions. [2021-10-13 19:26:15,121 INFO L78 Accepts]: Start accepts. Automaton has 22700 states and 99209 transitions. Word has length 20 [2021-10-13 19:26:15,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:15,121 INFO L470 AbstractCegarLoop]: Abstraction has 22700 states and 99209 transitions. [2021-10-13 19:26:15,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 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 19:26:15,121 INFO L276 IsEmpty]: Start isEmpty. Operand 22700 states and 99209 transitions. [2021-10-13 19:26:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:26:15,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:15,127 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:15,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-13 19:26:15,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,55 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:15,328 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:15,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:15,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2097550641, now seen corresponding path program 4 times [2021-10-13 19:26:15,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:15,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634039967] [2021-10-13 19:26:15,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:15,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:15,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:15,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634039967] [2021-10-13 19:26:15,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634039967] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:15,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487357813] [2021-10-13 19:26:15,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:26:15,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:15,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:15,536 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 19:26:15,561 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 19:26:16,229 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:26:16,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:16,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 19:26:16,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:16,505 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:26:16,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:26:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:16,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487357813] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:16,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:16,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2021-10-13 19:26:16,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852827813] [2021-10-13 19:26:16,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:26:16,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:16,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:26:16,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:26:16,665 INFO L87 Difference]: Start difference. First operand 22700 states and 99209 transitions. Second operand has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 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 19:26:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:18,407 INFO L93 Difference]: Finished difference Result 42085 states and 183341 transitions. [2021-10-13 19:26:18,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:26:18,408 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 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 20 [2021-10-13 19:26:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:18,650 INFO L225 Difference]: With dead ends: 42085 [2021-10-13 19:26:18,650 INFO L226 Difference]: Without dead ends: 41995 [2021-10-13 19:26:18,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 638.9ms TimeCoverageRelationStatistics Valid=246, Invalid=1086, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:26:18,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41995 states. [2021-10-13 19:26:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41995 to 35507. [2021-10-13 19:26:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35507 states, 35389 states have (on average 4.514764474836814) internal successors, (159773), 35506 states have internal predecessors, (159773), 0 states have call successors, (0), 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 19:26:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35507 states to 35507 states and 159773 transitions. [2021-10-13 19:26:20,459 INFO L78 Accepts]: Start accepts. Automaton has 35507 states and 159773 transitions. Word has length 20 [2021-10-13 19:26:20,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:20,459 INFO L470 AbstractCegarLoop]: Abstraction has 35507 states and 159773 transitions. [2021-10-13 19:26:20,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 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 19:26:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 35507 states and 159773 transitions. [2021-10-13 19:26:20,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:26:20,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:20,466 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:20,496 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 19:26:20,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,56 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:20,678 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:20,680 INFO L82 PathProgramCache]: Analyzing trace with hash -778123765, now seen corresponding path program 4 times [2021-10-13 19:26:20,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:20,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523430715] [2021-10-13 19:26:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:20,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:20,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:20,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523430715] [2021-10-13 19:26:20,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523430715] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:20,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011673549] [2021-10-13 19:26:20,936 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:26:20,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:20,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:20,937 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 19:26:20,938 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 19:26:21,671 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:26:21,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:21,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:26:21,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:21,803 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 19:26:21,849 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:21,849 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 19:26:21,894 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:21,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:26:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:22,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011673549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:22,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:22,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-13 19:26:22,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76287248] [2021-10-13 19:26:22,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:26:22,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:22,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:26:22,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:26:22,088 INFO L87 Difference]: Start difference. First operand 35507 states and 159773 transitions. Second operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:26:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:23,893 INFO L93 Difference]: Finished difference Result 35609 states and 159974 transitions. [2021-10-13 19:26:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:26:23,894 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 20 [2021-10-13 19:26:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:24,123 INFO L225 Difference]: With dead ends: 35609 [2021-10-13 19:26:24,123 INFO L226 Difference]: Without dead ends: 35609 [2021-10-13 19:26:24,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 894.5ms TimeCoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:26:24,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35609 states. [2021-10-13 19:26:25,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35609 to 35509. [2021-10-13 19:26:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35509 states, 35391 states have (on average 4.514678873159843) internal successors, (159779), 35508 states have internal predecessors, (159779), 0 states have call successors, (0), 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 19:26:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35509 states to 35509 states and 159779 transitions. [2021-10-13 19:26:25,398 INFO L78 Accepts]: Start accepts. Automaton has 35509 states and 159779 transitions. Word has length 20 [2021-10-13 19:26:25,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:25,398 INFO L470 AbstractCegarLoop]: Abstraction has 35509 states and 159779 transitions. [2021-10-13 19:26:25,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 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 19:26:25,398 INFO L276 IsEmpty]: Start isEmpty. Operand 35509 states and 159779 transitions. [2021-10-13 19:26:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:26:25,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:25,403 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:25,430 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 19:26:25,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,57 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:25,605 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:25,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:25,606 INFO L82 PathProgramCache]: Analyzing trace with hash -778123828, now seen corresponding path program 3 times [2021-10-13 19:26:25,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:25,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540240466] [2021-10-13 19:26:25,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:25,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:25,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:25,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540240466] [2021-10-13 19:26:25,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540240466] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:25,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916656178] [2021-10-13 19:26:25,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:26:25,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:25,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:25,874 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 19:26:25,875 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 19:26:26,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:26:26,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:26,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:26:26,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:27,325 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 29 treesize of output 25 [2021-10-13 19:26:27,427 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:26:27,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 49 [2021-10-13 19:26:27,559 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:26:27,559 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 48 treesize of output 47 [2021-10-13 19:26:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:28,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916656178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:28,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:28,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2021-10-13 19:26:28,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334880423] [2021-10-13 19:26:28,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:26:28,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:28,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:26:28,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:26:28,316 INFO L87 Difference]: Start difference. First operand 35509 states and 159779 transitions. Second operand has 26 states, 25 states have (on average 1.52) internal successors, (38), 25 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 19:26:33,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:33,760 INFO L93 Difference]: Finished difference Result 35699 states and 160152 transitions. [2021-10-13 19:26:33,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-13 19:26:33,761 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.52) internal successors, (38), 25 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 20 [2021-10-13 19:26:33,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:33,943 INFO L225 Difference]: With dead ends: 35699 [2021-10-13 19:26:33,944 INFO L226 Difference]: Without dead ends: 35699 [2021-10-13 19:26:33,944 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 4387.3ms TimeCoverageRelationStatistics Valid=635, Invalid=4057, Unknown=0, NotChecked=0, Total=4692 [2021-10-13 19:26:33,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35699 states. [2021-10-13 19:26:34,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35699 to 35537. [2021-10-13 19:26:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35537 states, 35419 states have (on average 4.5129732629379715) internal successors, (159845), 35536 states have internal predecessors, (159845), 0 states have call successors, (0), 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 19:26:35,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35537 states to 35537 states and 159845 transitions. [2021-10-13 19:26:35,600 INFO L78 Accepts]: Start accepts. Automaton has 35537 states and 159845 transitions. Word has length 20 [2021-10-13 19:26:35,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:35,601 INFO L470 AbstractCegarLoop]: Abstraction has 35537 states and 159845 transitions. [2021-10-13 19:26:35,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.52) internal successors, (38), 25 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 19:26:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 35537 states and 159845 transitions. [2021-10-13 19:26:35,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:26:35,607 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:35,607 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:35,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-10-13 19:26:35,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,58 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:35,809 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:35,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:35,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1844617328, now seen corresponding path program 1 times [2021-10-13 19:26:35,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:35,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688547100] [2021-10-13 19:26:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:35,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:26:36,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:36,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688547100] [2021-10-13 19:26:36,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688547100] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:36,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184844211] [2021-10-13 19:26:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:36,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:36,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:36,122 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 19:26:36,145 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 19:26:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:36,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:26:36,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:36,999 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 19:26:37,073 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:37,074 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 28 treesize of output 27 [2021-10-13 19:26:37,131 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:26:37,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:26:37,195 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:26:37,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:26:37,306 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:26:37,307 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 24 treesize of output 23 [2021-10-13 19:26:37,374 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 19:26:37,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:26:37,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184844211] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:37,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:37,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-13 19:26:37,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728939743] [2021-10-13 19:26:37,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:26:37,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:26:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:26:37,378 INFO L87 Difference]: Start difference. First operand 35537 states and 159845 transitions. Second operand has 21 states, 20 states have (on average 1.75) internal successors, (35), 20 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 19:26:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:39,018 INFO L93 Difference]: Finished difference Result 44377 states and 194890 transitions. [2021-10-13 19:26:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:26:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.75) internal successors, (35), 20 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 21 [2021-10-13 19:26:39,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:39,290 INFO L225 Difference]: With dead ends: 44377 [2021-10-13 19:26:39,290 INFO L226 Difference]: Without dead ends: 44377 [2021-10-13 19:26:39,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 608.1ms TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:26:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44377 states. [2021-10-13 19:26:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44377 to 34026. [2021-10-13 19:26:40,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34026 states, 33908 states have (on average 4.4380972041995985) internal successors, (150487), 34025 states have internal predecessors, (150487), 0 states have call successors, (0), 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 19:26:41,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34026 states to 34026 states and 150487 transitions. [2021-10-13 19:26:41,020 INFO L78 Accepts]: Start accepts. Automaton has 34026 states and 150487 transitions. Word has length 21 [2021-10-13 19:26:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:41,020 INFO L470 AbstractCegarLoop]: Abstraction has 34026 states and 150487 transitions. [2021-10-13 19:26:41,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.75) internal successors, (35), 20 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 19:26:41,021 INFO L276 IsEmpty]: Start isEmpty. Operand 34026 states and 150487 transitions. [2021-10-13 19:26:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:26:41,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:41,040 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:41,110 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 19:26:41,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2021-10-13 19:26:41,254 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:41,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:41,255 INFO L82 PathProgramCache]: Analyzing trace with hash 945133067, now seen corresponding path program 5 times [2021-10-13 19:26:41,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:41,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306730257] [2021-10-13 19:26:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:41,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:41,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:41,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306730257] [2021-10-13 19:26:41,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306730257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:41,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406627421] [2021-10-13 19:26:41,564 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:26:41,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:41,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:41,566 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 19:26:41,576 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 19:26:42,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 19:26:42,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:42,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:26:42,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:42,534 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 19:26:42,599 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:42,599 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 28 treesize of output 27 [2021-10-13 19:26:42,665 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:42,665 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 26 treesize of output 25 [2021-10-13 19:26:42,726 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:26:42,726 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 19:26:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:42,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406627421] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:42,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:42,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2021-10-13 19:26:42,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634453930] [2021-10-13 19:26:42,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:26:42,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:26:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:26:42,957 INFO L87 Difference]: Start difference. First operand 34026 states and 150487 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 19:26:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:45,420 INFO L93 Difference]: Finished difference Result 34478 states and 151869 transitions. [2021-10-13 19:26:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:26:45,420 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 21 [2021-10-13 19:26:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:45,601 INFO L225 Difference]: With dead ends: 34478 [2021-10-13 19:26:45,601 INFO L226 Difference]: Without dead ends: 34478 [2021-10-13 19:26:45,602 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1224.4ms TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:26:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34478 states. [2021-10-13 19:26:46,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34478 to 34076. [2021-10-13 19:26:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34076 states, 33958 states have (on average 4.437511043053183) internal successors, (150689), 34075 states have internal predecessors, (150689), 0 states have call successors, (0), 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 19:26:46,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34076 states to 34076 states and 150689 transitions. [2021-10-13 19:26:46,780 INFO L78 Accepts]: Start accepts. Automaton has 34076 states and 150689 transitions. Word has length 21 [2021-10-13 19:26:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:26:46,780 INFO L470 AbstractCegarLoop]: Abstraction has 34076 states and 150689 transitions. [2021-10-13 19:26:46,780 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 19:26:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 34076 states and 150689 transitions. [2021-10-13 19:26:46,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:26:46,787 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:26:46,787 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:26:46,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-10-13 19:26:46,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,60 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:46,988 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:26:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:26:46,990 INFO L82 PathProgramCache]: Analyzing trace with hash 945133004, now seen corresponding path program 3 times [2021-10-13 19:26:46,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:26:46,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299788471] [2021-10-13 19:26:46,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:26:46,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:26:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:26:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:47,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:26:47,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299788471] [2021-10-13 19:26:47,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299788471] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:47,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420698984] [2021-10-13 19:26:47,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:26:47,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:26:47,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:26:47,322 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 19:26:47,347 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 19:26:48,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:26:48,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:26:48,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:26:48,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:26:49,045 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 29 treesize of output 25 [2021-10-13 19:26:49,122 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:26:49,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 49 [2021-10-13 19:26:49,288 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:26:49,288 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 48 treesize of output 47 [2021-10-13 19:26:49,425 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:26:49,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-10-13 19:26:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:26:50,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420698984] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:26:50,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:26:50,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2021-10-13 19:26:50,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316751936] [2021-10-13 19:26:50,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:26:50,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:26:50,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:26:50,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:26:50,121 INFO L87 Difference]: Start difference. First operand 34076 states and 150689 transitions. Second operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 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 19:26:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:26:59,167 INFO L93 Difference]: Finished difference Result 40204 states and 170673 transitions. [2021-10-13 19:26:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-13 19:26:59,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 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 21 [2021-10-13 19:26:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:26:59,401 INFO L225 Difference]: With dead ends: 40204 [2021-10-13 19:26:59,401 INFO L226 Difference]: Without dead ends: 40204 [2021-10-13 19:26:59,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 5207.8ms TimeCoverageRelationStatistics Valid=690, Invalid=4280, Unknown=0, NotChecked=0, Total=4970 [2021-10-13 19:26:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40204 states. [2021-10-13 19:27:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40204 to 34611. [2021-10-13 19:27:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34611 states, 34493 states have (on average 4.425680572869858) internal successors, (152655), 34610 states have internal predecessors, (152655), 0 states have call successors, (0), 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 19:27:00,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34611 states to 34611 states and 152655 transitions. [2021-10-13 19:27:00,671 INFO L78 Accepts]: Start accepts. Automaton has 34611 states and 152655 transitions. Word has length 21 [2021-10-13 19:27:00,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:00,672 INFO L470 AbstractCegarLoop]: Abstraction has 34611 states and 152655 transitions. [2021-10-13 19:27:00,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 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 19:27:00,672 INFO L276 IsEmpty]: Start isEmpty. Operand 34611 states and 152655 transitions. [2021-10-13 19:27:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:27:00,682 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:00,682 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:00,711 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 19:27:00,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-10-13 19:27:00,883 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:00,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1154049764, now seen corresponding path program 5 times [2021-10-13 19:27:00,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:00,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857087720] [2021-10-13 19:27:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:00,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:01,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:01,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857087720] [2021-10-13 19:27:01,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857087720] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:01,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765894325] [2021-10-13 19:27:01,085 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:27:01,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:01,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:01,089 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 19:27:01,098 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 19:27:01,928 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 19:27:01,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:01,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 19:27:01,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:01,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 811 treesize of output 779 [2021-10-13 19:27:02,744 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:27:02,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:27:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:02,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765894325] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:02,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:02,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-10-13 19:27:02,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283227726] [2021-10-13 19:27:02,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:27:02,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:27:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:27:02,776 INFO L87 Difference]: Start difference. First operand 34611 states and 152655 transitions. Second operand has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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 19:27:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:04,099 INFO L93 Difference]: Finished difference Result 45908 states and 196377 transitions. [2021-10-13 19:27:04,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:27:04,099 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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 22 [2021-10-13 19:27:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:04,746 INFO L225 Difference]: With dead ends: 45908 [2021-10-13 19:27:04,746 INFO L226 Difference]: Without dead ends: 45852 [2021-10-13 19:27:04,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 864.9ms TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:27:04,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45852 states. [2021-10-13 19:27:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45852 to 34786. [2021-10-13 19:27:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34786 states, 34668 states have (on average 4.420849198107765) internal successors, (153262), 34785 states have internal predecessors, (153262), 0 states have call successors, (0), 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 19:27:06,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34786 states to 34786 states and 153262 transitions. [2021-10-13 19:27:06,082 INFO L78 Accepts]: Start accepts. Automaton has 34786 states and 153262 transitions. Word has length 22 [2021-10-13 19:27:06,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:06,082 INFO L470 AbstractCegarLoop]: Abstraction has 34786 states and 153262 transitions. [2021-10-13 19:27:06,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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 19:27:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 34786 states and 153262 transitions. [2021-10-13 19:27:06,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:27:06,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:06,093 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:06,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-13 19:27:06,293 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,SelfDestructingSolverStorable79 [2021-10-13 19:27:06,294 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:06,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:06,295 INFO L82 PathProgramCache]: Analyzing trace with hash -570127002, now seen corresponding path program 5 times [2021-10-13 19:27:06,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:06,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125985579] [2021-10-13 19:27:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:06,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:06,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:06,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125985579] [2021-10-13 19:27:06,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125985579] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:06,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980041028] [2021-10-13 19:27:06,434 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:27:06,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:06,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:06,436 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 19:27:06,437 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 19:27:07,297 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 19:27:07,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:07,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 19:27:07,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:07,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980041028] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:07,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:07,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-10-13 19:27:07,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622218294] [2021-10-13 19:27:07,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:27:07,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:07,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:27:07,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:27:07,527 INFO L87 Difference]: Start difference. First operand 34786 states and 153262 transitions. Second operand has 21 states, 20 states have (on average 1.8) internal successors, (36), 21 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 19:27:08,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:08,829 INFO L93 Difference]: Finished difference Result 33796 states and 144738 transitions. [2021-10-13 19:27:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:27:08,829 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.8) internal successors, (36), 21 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 22 [2021-10-13 19:27:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:08,982 INFO L225 Difference]: With dead ends: 33796 [2021-10-13 19:27:08,982 INFO L226 Difference]: Without dead ends: 32653 [2021-10-13 19:27:08,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 306.8ms TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:27:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32653 states. [2021-10-13 19:27:09,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32653 to 32120. [2021-10-13 19:27:10,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32120 states, 32002 states have (on average 4.32372976688957) internal successors, (138368), 32119 states have internal predecessors, (138368), 0 states have call successors, (0), 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 19:27:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32120 states to 32120 states and 138368 transitions. [2021-10-13 19:27:10,168 INFO L78 Accepts]: Start accepts. Automaton has 32120 states and 138368 transitions. Word has length 22 [2021-10-13 19:27:10,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:10,168 INFO L470 AbstractCegarLoop]: Abstraction has 32120 states and 138368 transitions. [2021-10-13 19:27:10,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.8) internal successors, (36), 21 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 19:27:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 32120 states and 138368 transitions. [2021-10-13 19:27:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:27:10,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:10,178 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:10,205 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 19:27:10,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,63 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:10,384 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:10,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1405164116, now seen corresponding path program 6 times [2021-10-13 19:27:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:10,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353501938] [2021-10-13 19:27:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:10,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:11,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:11,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353501938] [2021-10-13 19:27:11,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353501938] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:11,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483373505] [2021-10-13 19:27:11,187 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 19:27:11,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:11,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:11,188 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 19:27:11,189 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 19:27:12,060 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-13 19:27:12,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:12,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 19:27:12,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:12,218 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:27:12,219 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 165 treesize of output 187 [2021-10-13 19:27:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:14,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:14,857 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:27:14,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:27:15,188 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 19:27:15,266 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:15,267 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 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:27:15,434 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:15,434 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 19:27:15,873 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:15,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:27:15,923 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:15,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483373505] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:15,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:15,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-13 19:27:15,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090809757] [2021-10-13 19:27:15,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:27:15,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:15,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:27:15,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=695, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:27:15,925 INFO L87 Difference]: Start difference. First operand 32120 states and 138368 transitions. Second operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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 19:27:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:19,996 INFO L93 Difference]: Finished difference Result 48313 states and 200110 transitions. [2021-10-13 19:27:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:27:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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 22 [2021-10-13 19:27:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:20,360 INFO L225 Difference]: With dead ends: 48313 [2021-10-13 19:27:20,360 INFO L226 Difference]: Without dead ends: 48313 [2021-10-13 19:27:20,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2075.0ms TimeCoverageRelationStatistics Valid=165, Invalid=1317, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:27:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48313 states. [2021-10-13 19:27:21,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48313 to 34259. [2021-10-13 19:27:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34259 states, 34141 states have (on average 4.344571043613251) internal successors, (148328), 34258 states have internal predecessors, (148328), 0 states have call successors, (0), 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 19:27:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34259 states to 34259 states and 148328 transitions. [2021-10-13 19:27:21,668 INFO L78 Accepts]: Start accepts. Automaton has 34259 states and 148328 transitions. Word has length 22 [2021-10-13 19:27:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:21,668 INFO L470 AbstractCegarLoop]: Abstraction has 34259 states and 148328 transitions. [2021-10-13 19:27:21,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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 19:27:21,669 INFO L276 IsEmpty]: Start isEmpty. Operand 34259 states and 148328 transitions. [2021-10-13 19:27:21,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:27:21,677 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:21,678 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:21,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2021-10-13 19:27:21,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,64 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:21,878 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:21,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1405164053, now seen corresponding path program 3 times [2021-10-13 19:27:21,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:21,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363639567] [2021-10-13 19:27:21,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:21,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:22,132 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:22,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:22,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363639567] [2021-10-13 19:27:22,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363639567] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:22,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864574339] [2021-10-13 19:27:22,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:27:22,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:22,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:22,135 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 19:27:22,150 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 19:27:23,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:27:23,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:23,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:27:23,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:23,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:23,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 47 treesize of output 45 [2021-10-13 19:27:23,874 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:27:23,875 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 19:27:24,055 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:27:24,056 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 27 treesize of output 26 [2021-10-13 19:27:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:24,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864574339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:24,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:24,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-13 19:27:24,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773846036] [2021-10-13 19:27:24,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:27:24,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:27:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:27:24,093 INFO L87 Difference]: Start difference. First operand 34259 states and 148328 transitions. Second operand has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 27 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 19:27:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:25,470 INFO L93 Difference]: Finished difference Result 31823 states and 136746 transitions. [2021-10-13 19:27:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:27:25,475 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 27 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 22 [2021-10-13 19:27:25,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:25,626 INFO L225 Difference]: With dead ends: 31823 [2021-10-13 19:27:25,627 INFO L226 Difference]: Without dead ends: 31190 [2021-10-13 19:27:25,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 719.5ms TimeCoverageRelationStatistics Valid=243, Invalid=1163, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:27:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31190 states. [2021-10-13 19:27:26,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31190 to 28267. [2021-10-13 19:27:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28267 states, 28149 states have (on average 4.3368858574016835) internal successors, (122079), 28266 states have internal predecessors, (122079), 0 states have call successors, (0), 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 19:27:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28267 states to 28267 states and 122079 transitions. [2021-10-13 19:27:27,084 INFO L78 Accepts]: Start accepts. Automaton has 28267 states and 122079 transitions. Word has length 22 [2021-10-13 19:27:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:27,084 INFO L470 AbstractCegarLoop]: Abstraction has 28267 states and 122079 transitions. [2021-10-13 19:27:27,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 27 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 19:27:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 28267 states and 122079 transitions. [2021-10-13 19:27:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:27:27,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:27,093 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:27,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-10-13 19:27:27,293 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,SelfDestructingSolverStorable82 [2021-10-13 19:27:27,294 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:27,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:27,295 INFO L82 PathProgramCache]: Analyzing trace with hash -452587765, now seen corresponding path program 5 times [2021-10-13 19:27:27,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:27,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980598685] [2021-10-13 19:27:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:27,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:27,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:27,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980598685] [2021-10-13 19:27:27,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980598685] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:27,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223122146] [2021-10-13 19:27:27,443 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:27:27,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:27,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:27,445 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 19:27:27,458 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 19:27:28,166 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-13 19:27:28,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:28,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 19:27:28,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:28,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223122146] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:28,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:28,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-13 19:27:28,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339929683] [2021-10-13 19:27:28,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:27:28,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:27:28,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:27:28,453 INFO L87 Difference]: Start difference. First operand 28267 states and 122079 transitions. Second operand has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 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 19:27:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:30,278 INFO L93 Difference]: Finished difference Result 52048 states and 222501 transitions. [2021-10-13 19:27:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:27:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 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 22 [2021-10-13 19:27:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:30,609 INFO L225 Difference]: With dead ends: 52048 [2021-10-13 19:27:30,610 INFO L226 Difference]: Without dead ends: 52042 [2021-10-13 19:27:30,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 460.1ms TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2021-10-13 19:27:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52042 states. [2021-10-13 19:27:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52042 to 42252. [2021-10-13 19:27:32,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42252 states, 42134 states have (on average 4.4252622585085675) internal successors, (186454), 42251 states have internal predecessors, (186454), 0 states have call successors, (0), 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 19:27:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42252 states to 42252 states and 186454 transitions. [2021-10-13 19:27:32,546 INFO L78 Accepts]: Start accepts. Automaton has 42252 states and 186454 transitions. Word has length 22 [2021-10-13 19:27:32,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:32,546 INFO L470 AbstractCegarLoop]: Abstraction has 42252 states and 186454 transitions. [2021-10-13 19:27:32,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 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 19:27:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 42252 states and 186454 transitions. [2021-10-13 19:27:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:27:32,556 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:32,556 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:32,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-10-13 19:27:32,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,66 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:32,758 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:32,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1229162377, now seen corresponding path program 4 times [2021-10-13 19:27:32,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:32,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253954210] [2021-10-13 19:27:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:32,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:33,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:33,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253954210] [2021-10-13 19:27:33,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253954210] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:33,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974279461] [2021-10-13 19:27:33,177 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:27:33,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:33,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:33,178 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 19:27:33,179 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 19:27:34,101 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:27:34,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:34,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:27:34,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:34,254 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:27:34,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:27:34,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:34,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:35,349 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:27:35,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 108 [2021-10-13 19:27:35,587 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 19 treesize of output 15 [2021-10-13 19:27:35,658 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:35,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:27:35,732 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:35,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:27:35,809 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:35,809 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 28 treesize of output 27 [2021-10-13 19:27:35,882 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:35,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:27:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:36,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974279461] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:36,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:36,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:27:36,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838695947] [2021-10-13 19:27:36,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:27:36,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:36,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:27:36,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:27:36,130 INFO L87 Difference]: Start difference. First operand 42252 states and 186454 transitions. Second operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 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 19:27:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:40,004 INFO L93 Difference]: Finished difference Result 57686 states and 244437 transitions. [2021-10-13 19:27:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:27:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 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 23 [2021-10-13 19:27:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:40,304 INFO L225 Difference]: With dead ends: 57686 [2021-10-13 19:27:40,304 INFO L226 Difference]: Without dead ends: 57566 [2021-10-13 19:27:40,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2168.1ms TimeCoverageRelationStatistics Valid=212, Invalid=1428, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:27:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57566 states. [2021-10-13 19:27:41,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57566 to 42128. [2021-10-13 19:27:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42128 states, 42010 states have (on average 4.362366103308736) internal successors, (183263), 42127 states have internal predecessors, (183263), 0 states have call successors, (0), 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 19:27:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42128 states to 42128 states and 183263 transitions. [2021-10-13 19:27:42,230 INFO L78 Accepts]: Start accepts. Automaton has 42128 states and 183263 transitions. Word has length 23 [2021-10-13 19:27:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:42,230 INFO L470 AbstractCegarLoop]: Abstraction has 42128 states and 183263 transitions. [2021-10-13 19:27:42,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 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 19:27:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 42128 states and 183263 transitions. [2021-10-13 19:27:42,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:27:42,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:42,242 INFO L512 BasicCegarLoop]: trace histogram [5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:42,271 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 19:27:42,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,67 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:42,442 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:42,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:42,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1043535318, now seen corresponding path program 6 times [2021-10-13 19:27:42,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:42,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964341360] [2021-10-13 19:27:42,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:42,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:42,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:42,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964341360] [2021-10-13 19:27:42,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964341360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:42,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916018738] [2021-10-13 19:27:42,868 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 19:27:42,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:42,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:42,869 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 19:27:42,872 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 19:27:44,254 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-13 19:27:44,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:44,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 19:27:44,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:44,514 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 19:27:44,593 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-13 19:27:44,594 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 32 treesize of output 37 [2021-10-13 19:27:44,717 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:44,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:27:44,814 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:44,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-13 19:27:44,894 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:27:44,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-13 19:27:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:45,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916018738] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:45,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:27:45,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-13 19:27:45,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242992274] [2021-10-13 19:27:45,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:27:45,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:27:45,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:27:45,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:27:45,235 INFO L87 Difference]: Start difference. First operand 42128 states and 183263 transitions. Second operand has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 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 19:27:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:27:50,939 INFO L93 Difference]: Finished difference Result 68939 states and 296426 transitions. [2021-10-13 19:27:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 19:27:50,940 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 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 23 [2021-10-13 19:27:50,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:27:51,744 INFO L225 Difference]: With dead ends: 68939 [2021-10-13 19:27:51,744 INFO L226 Difference]: Without dead ends: 68939 [2021-10-13 19:27:51,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 3198.9ms TimeCoverageRelationStatistics Valid=400, Invalid=2680, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:27:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68939 states. [2021-10-13 19:27:53,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68939 to 46512. [2021-10-13 19:27:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46512 states, 46394 states have (on average 4.4399922403759104) internal successors, (205989), 46511 states have internal predecessors, (205989), 0 states have call successors, (0), 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 19:27:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46512 states to 46512 states and 205989 transitions. [2021-10-13 19:27:54,098 INFO L78 Accepts]: Start accepts. Automaton has 46512 states and 205989 transitions. Word has length 23 [2021-10-13 19:27:54,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:27:54,098 INFO L470 AbstractCegarLoop]: Abstraction has 46512 states and 205989 transitions. [2021-10-13 19:27:54,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 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 19:27:54,099 INFO L276 IsEmpty]: Start isEmpty. Operand 46512 states and 205989 transitions. [2021-10-13 19:27:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:27:54,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:27:54,110 INFO L512 BasicCegarLoop]: trace histogram [5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:27:54,138 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 19:27:54,310 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,SelfDestructingSolverStorable85 [2021-10-13 19:27:54,311 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:27:54,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:27:54,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1043535253, now seen corresponding path program 3 times [2021-10-13 19:27:54,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:27:54,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849908566] [2021-10-13 19:27:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:27:54,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:27:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:27:54,681 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:27:54,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:27:54,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849908566] [2021-10-13 19:27:54,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849908566] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:27:54,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100453083] [2021-10-13 19:27:54,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:27:54,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:27:54,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:27:54,684 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 19:27:54,688 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 19:27:55,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 19:27:55,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:27:55,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-13 19:27:55,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:27:55,841 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:27:55,842 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 19:27:58,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:27:58,698 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:27:58,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:27:59,067 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 27 treesize of output 23 [2021-10-13 19:27:59,172 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:27:59,173 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 40 treesize of output 47 [2021-10-13 19:27:59,349 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:27:59,349 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 46 treesize of output 45 [2021-10-13 19:27:59,510 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:27:59,510 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 43 treesize of output 42 [2021-10-13 19:27:59,637 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:27:59,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:28:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:00,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100453083] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:00,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:28:00,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:28:00,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897426332] [2021-10-13 19:28:00,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:28:00,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:28:00,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:28:00,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:28:00,299 INFO L87 Difference]: Start difference. First operand 46512 states and 205989 transitions. Second operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 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 19:28:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:28:12,054 INFO L93 Difference]: Finished difference Result 71703 states and 301185 transitions. [2021-10-13 19:28:12,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-13 19:28:12,054 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 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 23 [2021-10-13 19:28:12,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:28:12,488 INFO L225 Difference]: With dead ends: 71703 [2021-10-13 19:28:12,489 INFO L226 Difference]: Without dead ends: 71703 [2021-10-13 19:28:12,489 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 918 ImplicationChecksByTransitivity, 8198.6ms TimeCoverageRelationStatistics Valid=715, Invalid=4115, Unknown=0, NotChecked=0, Total=4830 [2021-10-13 19:28:12,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71703 states. [2021-10-13 19:28:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71703 to 48420. [2021-10-13 19:28:14,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48420 states, 48302 states have (on average 4.336652726595172) internal successors, (209469), 48419 states have internal predecessors, (209469), 0 states have call successors, (0), 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 19:28:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48420 states to 48420 states and 209469 transitions. [2021-10-13 19:28:14,683 INFO L78 Accepts]: Start accepts. Automaton has 48420 states and 209469 transitions. Word has length 23 [2021-10-13 19:28:14,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:28:14,683 INFO L470 AbstractCegarLoop]: Abstraction has 48420 states and 209469 transitions. [2021-10-13 19:28:14,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 29 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 19:28:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 48420 states and 209469 transitions. [2021-10-13 19:28:14,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:28:14,694 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:28:14,694 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:28:14,722 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 19:28:14,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,69 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:14,895 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:28:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:28:14,896 INFO L82 PathProgramCache]: Analyzing trace with hash 933136756, now seen corresponding path program 1 times [2021-10-13 19:28:14,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:28:14,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567171531] [2021-10-13 19:28:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:14,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:28:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:28:14,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:28:14,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567171531] [2021-10-13 19:28:14,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567171531] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:14,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479222028] [2021-10-13 19:28:14,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:14,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:14,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:28:14,950 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 19:28:14,959 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 19:28:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:16,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 19:28:16,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:28:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 19:28:16,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479222028] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:16,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:28:16,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-13 19:28:16,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209565191] [2021-10-13 19:28:16,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:28:16,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:28:16,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:28:16,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:28:16,472 INFO L87 Difference]: Start difference. First operand 48420 states and 209469 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 19:28:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:28:17,804 INFO L93 Difference]: Finished difference Result 84849 states and 356644 transitions. [2021-10-13 19:28:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:28:17,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 19:28:17,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:28:18,380 INFO L225 Difference]: With dead ends: 84849 [2021-10-13 19:28:18,380 INFO L226 Difference]: Without dead ends: 84849 [2021-10-13 19:28:18,381 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:28:18,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84849 states. [2021-10-13 19:28:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84849 to 50713. [2021-10-13 19:28:20,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50713 states, 50595 states have (on average 4.376934479691669) internal successors, (221451), 50712 states have internal predecessors, (221451), 0 states have call successors, (0), 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 19:28:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50713 states to 50713 states and 221451 transitions. [2021-10-13 19:28:20,835 INFO L78 Accepts]: Start accepts. Automaton has 50713 states and 221451 transitions. Word has length 23 [2021-10-13 19:28:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:28:20,835 INFO L470 AbstractCegarLoop]: Abstraction has 50713 states and 221451 transitions. [2021-10-13 19:28:20,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 19:28:20,835 INFO L276 IsEmpty]: Start isEmpty. Operand 50713 states and 221451 transitions. [2021-10-13 19:28:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:28:20,846 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:28:20,846 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:28:20,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-10-13 19:28:21,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-10-13 19:28:21,047 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:28:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:28:21,048 INFO L82 PathProgramCache]: Analyzing trace with hash 933136757, now seen corresponding path program 6 times [2021-10-13 19:28:21,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:28:21,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252034286] [2021-10-13 19:28:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:21,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:28:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:21,961 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:21,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:28:21,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252034286] [2021-10-13 19:28:21,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252034286] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:21,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099610379] [2021-10-13 19:28:21,964 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 19:28:21,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:21,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:28:21,965 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 19:28:21,968 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 19:28:23,280 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-13 19:28:23,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:28:23,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 19:28:23,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:28:23,676 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:28:23,677 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 28 treesize of output 27 [2021-10-13 19:28:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:23,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099610379] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:23,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:28:23,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2021-10-13 19:28:23,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740584256] [2021-10-13 19:28:23,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:28:23,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:28:23,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:28:23,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:28:23,917 INFO L87 Difference]: Start difference. First operand 50713 states and 221451 transitions. Second operand has 30 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 29 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 19:28:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:28:31,071 INFO L93 Difference]: Finished difference Result 56342 states and 242786 transitions. [2021-10-13 19:28:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-13 19:28:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 29 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 23 [2021-10-13 19:28:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:28:31,657 INFO L225 Difference]: With dead ends: 56342 [2021-10-13 19:28:31,658 INFO L226 Difference]: Without dead ends: 56342 [2021-10-13 19:28:31,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 3696.5ms TimeCoverageRelationStatistics Valid=706, Invalid=4844, Unknown=0, NotChecked=0, Total=5550 [2021-10-13 19:28:31,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56342 states. [2021-10-13 19:28:34,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56342 to 50393. [2021-10-13 19:28:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50393 states, 50275 states have (on average 4.382337145698657) internal successors, (220322), 50392 states have internal predecessors, (220322), 0 states have call successors, (0), 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 19:28:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50393 states to 50393 states and 220322 transitions. [2021-10-13 19:28:34,493 INFO L78 Accepts]: Start accepts. Automaton has 50393 states and 220322 transitions. Word has length 23 [2021-10-13 19:28:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:28:34,494 INFO L470 AbstractCegarLoop]: Abstraction has 50393 states and 220322 transitions. [2021-10-13 19:28:34,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 29 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 19:28:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 50393 states and 220322 transitions. [2021-10-13 19:28:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:28:34,505 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:28:34,505 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:28:34,533 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 19:28:34,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,71 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:34,705 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:28:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:28:34,707 INFO L82 PathProgramCache]: Analyzing trace with hash -925996144, now seen corresponding path program 4 times [2021-10-13 19:28:34,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:28:34,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250731020] [2021-10-13 19:28:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:34,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:28:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:35,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:28:35,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250731020] [2021-10-13 19:28:35,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250731020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:35,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914526175] [2021-10-13 19:28:35,052 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:28:35,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:35,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:28:35,055 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 19:28:35,055 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 19:28:36,110 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:28:36,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:28:36,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:28:36,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:28:36,287 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 19:28:36,340 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:28:36,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:28:36,396 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:28:36,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:28:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:36,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914526175] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:36,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:28:36,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-13 19:28:36,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347197974] [2021-10-13 19:28:36,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:28:36,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:28:36,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:28:36,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:28:36,680 INFO L87 Difference]: Start difference. First operand 50393 states and 220322 transitions. Second operand has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 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 19:28:39,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:28:39,116 INFO L93 Difference]: Finished difference Result 50579 states and 220670 transitions. [2021-10-13 19:28:39,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:28:39,117 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 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 23 [2021-10-13 19:28:39,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:28:39,772 INFO L225 Difference]: With dead ends: 50579 [2021-10-13 19:28:39,772 INFO L226 Difference]: Without dead ends: 50579 [2021-10-13 19:28:39,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1600.4ms TimeCoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:28:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50579 states. [2021-10-13 19:28:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50579 to 50393. [2021-10-13 19:28:41,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50393 states, 50275 states have (on average 4.382297364495276) internal successors, (220320), 50392 states have internal predecessors, (220320), 0 states have call successors, (0), 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 19:28:41,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50393 states to 50393 states and 220320 transitions. [2021-10-13 19:28:41,888 INFO L78 Accepts]: Start accepts. Automaton has 50393 states and 220320 transitions. Word has length 23 [2021-10-13 19:28:41,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:28:41,889 INFO L470 AbstractCegarLoop]: Abstraction has 50393 states and 220320 transitions. [2021-10-13 19:28:41,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 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 19:28:41,889 INFO L276 IsEmpty]: Start isEmpty. Operand 50393 states and 220320 transitions. [2021-10-13 19:28:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 19:28:41,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:28:41,905 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:28:41,950 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 19:28:42,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-10-13 19:28:42,121 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:28:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:28:42,121 INFO L82 PathProgramCache]: Analyzing trace with hash -749380684, now seen corresponding path program 2 times [2021-10-13 19:28:42,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:28:42,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889529059] [2021-10-13 19:28:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:42,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:28:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:28:42,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:28:42,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889529059] [2021-10-13 19:28:42,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889529059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:42,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147733124] [2021-10-13 19:28:42,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:28:42,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:42,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:28:42,246 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 19:28:42,246 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 19:28:43,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:28:43,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:28:43,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 19:28:43,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:28:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:28:43,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147733124] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:43,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:28:43,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2021-10-13 19:28:43,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778435695] [2021-10-13 19:28:43,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 19:28:43,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:28:43,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 19:28:43,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:28:43,503 INFO L87 Difference]: Start difference. First operand 50393 states and 220320 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 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 19:28:44,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:28:44,854 INFO L93 Difference]: Finished difference Result 51777 states and 225882 transitions. [2021-10-13 19:28:44,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:28:44,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 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 24 [2021-10-13 19:28:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:28:45,210 INFO L225 Difference]: With dead ends: 51777 [2021-10-13 19:28:45,211 INFO L226 Difference]: Without dead ends: 50105 [2021-10-13 19:28:45,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 205.4ms TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:28:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50105 states. [2021-10-13 19:28:46,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50105 to 50085. [2021-10-13 19:28:47,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50085 states, 49967 states have (on average 4.374747333239938) internal successors, (218593), 50084 states have internal predecessors, (218593), 0 states have call successors, (0), 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 19:28:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50085 states to 50085 states and 218593 transitions. [2021-10-13 19:28:47,387 INFO L78 Accepts]: Start accepts. Automaton has 50085 states and 218593 transitions. Word has length 24 [2021-10-13 19:28:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:28:47,387 INFO L470 AbstractCegarLoop]: Abstraction has 50085 states and 218593 transitions. [2021-10-13 19:28:47,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 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 19:28:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 50085 states and 218593 transitions. [2021-10-13 19:28:47,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 19:28:47,402 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:28:47,402 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:28:47,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-10-13 19:28:47,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,73 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:47,617 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:28:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:28:47,618 INFO L82 PathProgramCache]: Analyzing trace with hash 244062856, now seen corresponding path program 4 times [2021-10-13 19:28:47,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:28:47,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834079990] [2021-10-13 19:28:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:47,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:28:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:48,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:28:48,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834079990] [2021-10-13 19:28:48,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834079990] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:48,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247500634] [2021-10-13 19:28:48,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:28:48,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:48,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:28:48,028 INFO L229 MonitoredProcess]: Starting monitored process 74 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 19:28:48,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-10-13 19:28:49,109 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:28:49,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:28:49,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:28:49,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:28:49,255 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:28:49,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 28 treesize of output 58 [2021-10-13 19:28:50,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:28:50,671 INFO L354 Elim1Store]: treesize reduction 152, result has 30.0 percent of original size [2021-10-13 19:28:50,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 65 treesize of output 113 [2021-10-13 19:28:50,989 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 19 treesize of output 15 [2021-10-13 19:28:51,061 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:28:51,062 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 19:28:51,133 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:28:51,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:28:51,202 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:28:51,202 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 28 treesize of output 27 [2021-10-13 19:28:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:28:51,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247500634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:51,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:28:51,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-13 19:28:51,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462538231] [2021-10-13 19:28:51,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:28:51,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:28:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:28:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=917, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:28:51,520 INFO L87 Difference]: Start difference. First operand 50085 states and 218593 transitions. Second operand has 32 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:28:55,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:28:55,556 INFO L93 Difference]: Finished difference Result 50705 states and 220238 transitions. [2021-10-13 19:28:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:28:55,556 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:28:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:28:55,852 INFO L225 Difference]: With dead ends: 50705 [2021-10-13 19:28:55,852 INFO L226 Difference]: Without dead ends: 50705 [2021-10-13 19:28:55,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2328.7ms TimeCoverageRelationStatistics Valid=239, Invalid=1831, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:28:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50705 states. [2021-10-13 19:28:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50705 to 50085. [2021-10-13 19:28:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50085 states, 49967 states have (on average 4.37374667280405) internal successors, (218543), 50084 states have internal predecessors, (218543), 0 states have call successors, (0), 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 19:28:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50085 states to 50085 states and 218543 transitions. [2021-10-13 19:28:57,934 INFO L78 Accepts]: Start accepts. Automaton has 50085 states and 218543 transitions. Word has length 24 [2021-10-13 19:28:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:28:57,935 INFO L470 AbstractCegarLoop]: Abstraction has 50085 states and 218543 transitions. [2021-10-13 19:28:57,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:28:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 50085 states and 218543 transitions. [2021-10-13 19:28:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:28:57,953 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:28:57,953 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:28:57,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2021-10-13 19:28:58,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,74 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:58,155 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:28:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:28:58,156 INFO L82 PathProgramCache]: Analyzing trace with hash 152758965, now seen corresponding path program 2 times [2021-10-13 19:28:58,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:28:58,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827256728] [2021-10-13 19:28:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:28:58,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:28:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:28:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:28:58,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:28:58,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827256728] [2021-10-13 19:28:58,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827256728] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:28:58,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160705969] [2021-10-13 19:28:58,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:28:58,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:28:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:28:58,359 INFO L229 MonitoredProcess]: Starting monitored process 75 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 19:28:58,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-13 19:28:59,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:28:59,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:28:59,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 19:28:59,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:00,200 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:29:00,200 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 19:29:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:29:00,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160705969] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:00,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:00,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2021-10-13 19:29:00,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594239127] [2021-10-13 19:29:00,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:29:00,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:00,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:29:00,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:29:00,329 INFO L87 Difference]: Start difference. First operand 50085 states and 218543 transitions. Second operand has 23 states, 23 states have (on average 2.0) internal successors, (46), 22 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 19:29:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:01,434 INFO L93 Difference]: Finished difference Result 49041 states and 214284 transitions. [2021-10-13 19:29:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:29:01,435 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 22 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 25 [2021-10-13 19:29:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:02,251 INFO L225 Difference]: With dead ends: 49041 [2021-10-13 19:29:02,251 INFO L226 Difference]: Without dead ends: 47568 [2021-10-13 19:29:02,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 461.2ms TimeCoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:29:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47568 states. [2021-10-13 19:29:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47568 to 47568. [2021-10-13 19:29:03,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47568 states, 47450 states have (on average 4.400463645943098) internal successors, (208802), 47567 states have internal predecessors, (208802), 0 states have call successors, (0), 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 19:29:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47568 states to 47568 states and 208802 transitions. [2021-10-13 19:29:04,691 INFO L78 Accepts]: Start accepts. Automaton has 47568 states and 208802 transitions. Word has length 25 [2021-10-13 19:29:04,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:04,691 INFO L470 AbstractCegarLoop]: Abstraction has 47568 states and 208802 transitions. [2021-10-13 19:29:04,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 22 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 19:29:04,692 INFO L276 IsEmpty]: Start isEmpty. Operand 47568 states and 208802 transitions. [2021-10-13 19:29:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:29:04,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:29:04,727 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:29:04,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-10-13 19:29:04,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,75 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:04,928 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:29:04,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:29:04,929 INFO L82 PathProgramCache]: Analyzing trace with hash -949205602, now seen corresponding path program 3 times [2021-10-13 19:29:04,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:29:04,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400053992] [2021-10-13 19:29:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:29:04,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:29:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:29:05,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:29:05,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400053992] [2021-10-13 19:29:05,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400053992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:05,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548579539] [2021-10-13 19:29:05,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:29:05,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:05,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:29:05,321 INFO L229 MonitoredProcess]: Starting monitored process 76 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 19:29:05,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-10-13 19:29:06,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:29:06,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:29:06,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:29:06,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:06,557 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 19:29:06,627 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:06,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:06,694 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:06,694 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 19:29:06,776 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:06,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:29:07,005 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 21 treesize of output 9 [2021-10-13 19:29:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:29:07,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548579539] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:07,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:07,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2021-10-13 19:29:07,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484744588] [2021-10-13 19:29:07,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:29:07,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:07,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:29:07,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:29:07,011 INFO L87 Difference]: Start difference. First operand 47568 states and 208802 transitions. Second operand has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:29:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:09,973 INFO L93 Difference]: Finished difference Result 54502 states and 244026 transitions. [2021-10-13 19:29:09,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:29:09,974 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:29:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:10,295 INFO L225 Difference]: With dead ends: 54502 [2021-10-13 19:29:10,295 INFO L226 Difference]: Without dead ends: 54502 [2021-10-13 19:29:10,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1245.2ms TimeCoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:29:10,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54502 states. [2021-10-13 19:29:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54502 to 49910. [2021-10-13 19:29:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49910 states, 49792 states have (on average 4.475156651670951) internal successors, (222827), 49909 states have internal predecessors, (222827), 0 states have call successors, (0), 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 19:29:12,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49910 states to 49910 states and 222827 transitions. [2021-10-13 19:29:12,473 INFO L78 Accepts]: Start accepts. Automaton has 49910 states and 222827 transitions. Word has length 25 [2021-10-13 19:29:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:12,474 INFO L470 AbstractCegarLoop]: Abstraction has 49910 states and 222827 transitions. [2021-10-13 19:29:12,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:29:12,474 INFO L276 IsEmpty]: Start isEmpty. Operand 49910 states and 222827 transitions. [2021-10-13 19:29:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:29:12,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:29:12,486 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:29:12,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2021-10-13 19:29:12,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2021-10-13 19:29:12,687 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:29:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:29:12,688 INFO L82 PathProgramCache]: Analyzing trace with hash -949205497, now seen corresponding path program 2 times [2021-10-13 19:29:12,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:29:12,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125276943] [2021-10-13 19:29:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:29:12,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:29:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:29:13,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:29:13,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125276943] [2021-10-13 19:29:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125276943] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:13,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196615319] [2021-10-13 19:29:13,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:29:13,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:13,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:29:13,548 INFO L229 MonitoredProcess]: Starting monitored process 77 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 19:29:13,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-13 19:29:14,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:29:14,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:29:14,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:29:14,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:14,804 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 19:29:14,869 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:14,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:29:14,933 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:14,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:14,993 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:14,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:15,190 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 19:29:15,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:29:15,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196615319] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:15,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:15,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2021-10-13 19:29:15,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480026528] [2021-10-13 19:29:15,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:29:15,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:15,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:29:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:29:15,193 INFO L87 Difference]: Start difference. First operand 49910 states and 222827 transitions. Second operand has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:29:17,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:17,863 INFO L93 Difference]: Finished difference Result 54449 states and 241767 transitions. [2021-10-13 19:29:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:29:17,863 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:29:17,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:18,178 INFO L225 Difference]: With dead ends: 54449 [2021-10-13 19:29:18,178 INFO L226 Difference]: Without dead ends: 54449 [2021-10-13 19:29:18,179 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1223.0ms TimeCoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:29:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54449 states. [2021-10-13 19:29:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54449 to 49910. [2021-10-13 19:29:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49910 states, 49792 states have (on average 4.43237869537275) internal successors, (220697), 49909 states have internal predecessors, (220697), 0 states have call successors, (0), 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 19:29:20,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49910 states to 49910 states and 220697 transitions. [2021-10-13 19:29:20,314 INFO L78 Accepts]: Start accepts. Automaton has 49910 states and 220697 transitions. Word has length 25 [2021-10-13 19:29:20,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:20,314 INFO L470 AbstractCegarLoop]: Abstraction has 49910 states and 220697 transitions. [2021-10-13 19:29:20,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:29:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 49910 states and 220697 transitions. [2021-10-13 19:29:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:29:20,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:29:20,329 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:29:20,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-10-13 19:29:20,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,77 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:20,530 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:29:20,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:29:20,531 INFO L82 PathProgramCache]: Analyzing trace with hash -894923680, now seen corresponding path program 7 times [2021-10-13 19:29:20,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:29:20,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612249748] [2021-10-13 19:29:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:29:20,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:29:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:20,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:29:20,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612249748] [2021-10-13 19:29:20,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612249748] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:20,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487346135] [2021-10-13 19:29:20,798 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 19:29:20,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:20,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:29:20,802 INFO L229 MonitoredProcess]: Starting monitored process 78 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 19:29:20,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-10-13 19:29:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:22,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:29:22,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:22,545 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 19:29:22,609 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:22,610 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 26 treesize of output 25 [2021-10-13 19:29:22,679 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:22,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:23,003 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:23,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:23,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487346135] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:23,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:23,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-13 19:29:23,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427937470] [2021-10-13 19:29:23,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:29:23,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:29:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:29:23,043 INFO L87 Difference]: Start difference. First operand 49910 states and 220697 transitions. Second operand has 31 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 30 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:29:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:28,667 INFO L93 Difference]: Finished difference Result 88397 states and 371132 transitions. [2021-10-13 19:29:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 19:29:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 30 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:29:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:29,923 INFO L225 Difference]: With dead ends: 88397 [2021-10-13 19:29:29,924 INFO L226 Difference]: Without dead ends: 88325 [2021-10-13 19:29:29,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 2218.1ms TimeCoverageRelationStatistics Valid=485, Invalid=3675, Unknown=0, NotChecked=0, Total=4160 [2021-10-13 19:29:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88325 states. [2021-10-13 19:29:32,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88325 to 52700. [2021-10-13 19:29:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52700 states, 52582 states have (on average 4.43800159750485) internal successors, (233359), 52699 states have internal predecessors, (233359), 0 states have call successors, (0), 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 19:29:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52700 states to 52700 states and 233359 transitions. [2021-10-13 19:29:32,770 INFO L78 Accepts]: Start accepts. Automaton has 52700 states and 233359 transitions. Word has length 25 [2021-10-13 19:29:32,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:32,770 INFO L470 AbstractCegarLoop]: Abstraction has 52700 states and 233359 transitions. [2021-10-13 19:29:32,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 30 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:29:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 52700 states and 233359 transitions. [2021-10-13 19:29:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:29:32,793 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:29:32,793 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:29:32,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-10-13 19:29:33,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,78 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:33,009 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:29:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:29:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash -2109947989, now seen corresponding path program 7 times [2021-10-13 19:29:33,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:29:33,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001367115] [2021-10-13 19:29:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:29:33,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:29:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:33,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:29:33,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001367115] [2021-10-13 19:29:33,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001367115] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:33,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991950080] [2021-10-13 19:29:33,775 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 19:29:33,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:33,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:29:33,779 INFO L229 MonitoredProcess]: Starting monitored process 79 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 19:29:33,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-10-13 19:29:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:34,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 19:29:34,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:35,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991950080] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:35,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:35,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-10-13 19:29:35,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245567734] [2021-10-13 19:29:35,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:29:35,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:29:35,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:29:35,254 INFO L87 Difference]: Start difference. First operand 52700 states and 233359 transitions. Second operand has 26 states, 25 states have (on average 1.72) internal successors, (43), 26 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 19:29:37,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:37,159 INFO L93 Difference]: Finished difference Result 49656 states and 217713 transitions. [2021-10-13 19:29:37,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:29:37,159 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.72) internal successors, (43), 26 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 25 [2021-10-13 19:29:37,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:37,931 INFO L225 Difference]: With dead ends: 49656 [2021-10-13 19:29:37,931 INFO L226 Difference]: Without dead ends: 48043 [2021-10-13 19:29:37,932 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 464.5ms TimeCoverageRelationStatistics Valid=282, Invalid=1050, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:29:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48043 states. [2021-10-13 19:29:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48043 to 47396. [2021-10-13 19:29:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47396 states, 47278 states have (on average 4.416599686957993) internal successors, (208808), 47395 states have internal predecessors, (208808), 0 states have call successors, (0), 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 19:29:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47396 states to 47396 states and 208808 transitions. [2021-10-13 19:29:40,608 INFO L78 Accepts]: Start accepts. Automaton has 47396 states and 208808 transitions. Word has length 25 [2021-10-13 19:29:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:40,608 INFO L470 AbstractCegarLoop]: Abstraction has 47396 states and 208808 transitions. [2021-10-13 19:29:40,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.72) internal successors, (43), 26 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 19:29:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 47396 states and 208808 transitions. [2021-10-13 19:29:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:29:40,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:29:40,623 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:29:40,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2021-10-13 19:29:40,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,79 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:40,823 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:29:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:29:40,826 INFO L82 PathProgramCache]: Analyzing trace with hash -905081511, now seen corresponding path program 5 times [2021-10-13 19:29:40,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:29:40,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387614570] [2021-10-13 19:29:40,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:29:40,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:29:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:41,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:29:41,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387614570] [2021-10-13 19:29:41,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387614570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:41,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63505174] [2021-10-13 19:29:41,143 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:29:41,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:41,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:29:41,145 INFO L229 MonitoredProcess]: Starting monitored process 80 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 19:29:41,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-13 19:29:42,341 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-13 19:29:42,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:29:42,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:29:42,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:42,618 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 19:29:42,685 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:42,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:42,831 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:42,832 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 28 treesize of output 27 [2021-10-13 19:29:43,121 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:29:43,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:29:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:43,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63505174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:43,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:43,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 31 [2021-10-13 19:29:43,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788642333] [2021-10-13 19:29:43,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 19:29:43,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 19:29:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=899, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:29:43,172 INFO L87 Difference]: Start difference. First operand 47396 states and 208808 transitions. Second operand has 32 states, 32 states have (on average 1.5625) internal successors, (50), 31 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:29:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:49,605 INFO L93 Difference]: Finished difference Result 64091 states and 267184 transitions. [2021-10-13 19:29:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 19:29:49,606 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.5625) internal successors, (50), 31 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:29:49,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:50,025 INFO L225 Difference]: With dead ends: 64091 [2021-10-13 19:29:50,026 INFO L226 Difference]: Without dead ends: 63134 [2021-10-13 19:29:50,026 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 2521.1ms TimeCoverageRelationStatistics Valid=472, Invalid=3818, Unknown=0, NotChecked=0, Total=4290 [2021-10-13 19:29:50,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2021-10-13 19:29:51,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 38708. [2021-10-13 19:29:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38708 states, 38590 states have (on average 4.367660015548069) internal successors, (168548), 38707 states have internal predecessors, (168548), 0 states have call successors, (0), 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 19:29:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38708 states to 38708 states and 168548 transitions. [2021-10-13 19:29:52,113 INFO L78 Accepts]: Start accepts. Automaton has 38708 states and 168548 transitions. Word has length 25 [2021-10-13 19:29:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:52,113 INFO L470 AbstractCegarLoop]: Abstraction has 38708 states and 168548 transitions. [2021-10-13 19:29:52,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.5625) internal successors, (50), 31 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:29:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 38708 states and 168548 transitions. [2021-10-13 19:29:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:29:52,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:29:52,123 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:29:52,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2021-10-13 19:29:52,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,80 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:52,324 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:29:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:29:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash -823962673, now seen corresponding path program 6 times [2021-10-13 19:29:52,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:29:52,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815900794] [2021-10-13 19:29:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:29:52,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:29:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:29:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:52,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:29:52,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815900794] [2021-10-13 19:29:52,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815900794] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:52,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142373359] [2021-10-13 19:29:52,549 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 19:29:52,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:29:52,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:29:52,551 INFO L229 MonitoredProcess]: Starting monitored process 81 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 19:29:52,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-13 19:29:53,858 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-10-13 19:29:53,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:29:53,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 19:29:53,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:29:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:29:54,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142373359] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:29:54,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:29:54,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 30 [2021-10-13 19:29:54,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381654271] [2021-10-13 19:29:54,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:29:54,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:29:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:29:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:29:54,250 INFO L87 Difference]: Start difference. First operand 38708 states and 168548 transitions. Second operand has 30 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 30 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 19:29:56,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:29:56,545 INFO L93 Difference]: Finished difference Result 72332 states and 312585 transitions. [2021-10-13 19:29:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 19:29:56,546 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 30 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 25 [2021-10-13 19:29:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:29:57,492 INFO L225 Difference]: With dead ends: 72332 [2021-10-13 19:29:57,493 INFO L226 Difference]: Without dead ends: 72202 [2021-10-13 19:29:57,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 674.2ms TimeCoverageRelationStatistics Valid=470, Invalid=1786, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 19:29:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72202 states. [2021-10-13 19:29:59,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72202 to 59026. [2021-10-13 19:29:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59026 states, 58908 states have (on average 4.424764038840226) internal successors, (260654), 59025 states have internal predecessors, (260654), 0 states have call successors, (0), 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 19:29:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59026 states to 59026 states and 260654 transitions. [2021-10-13 19:29:59,998 INFO L78 Accepts]: Start accepts. Automaton has 59026 states and 260654 transitions. Word has length 25 [2021-10-13 19:29:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:29:59,998 INFO L470 AbstractCegarLoop]: Abstraction has 59026 states and 260654 transitions. [2021-10-13 19:29:59,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 30 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 19:29:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 59026 states and 260654 transitions. [2021-10-13 19:30:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:30:00,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:30:00,013 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:30:00,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2021-10-13 19:30:00,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,81 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:30:00,214 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:30:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:30:00,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1746846197, now seen corresponding path program 3 times [2021-10-13 19:30:00,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:30:00,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805856182] [2021-10-13 19:30:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:30:00,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:30:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:30:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:30:01,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:30:01,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805856182] [2021-10-13 19:30:01,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805856182] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:01,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126377408] [2021-10-13 19:30:01,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:30:01,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:30:01,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:30:01,284 INFO L229 MonitoredProcess]: Starting monitored process 82 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 19:30:01,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-13 19:30:02,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:30:02,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:30:02,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:30:02,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:30:02,717 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 19:30:02,794 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:02,794 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 30 treesize of output 29 [2021-10-13 19:30:02,868 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:02,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:02,947 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:02,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:03,080 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:03,081 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 28 treesize of output 27 [2021-10-13 19:30:03,250 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 21 treesize of output 9 [2021-10-13 19:30:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:30:03,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126377408] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:03,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:30:03,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-13 19:30:03,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838937072] [2021-10-13 19:30:03,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:30:03,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:30:03,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:30:03,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:30:03,253 INFO L87 Difference]: Start difference. First operand 59026 states and 260654 transitions. Second operand has 29 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 28 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:30:06,890 INFO L93 Difference]: Finished difference Result 92915 states and 405266 transitions. [2021-10-13 19:30:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:30:06,891 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 28 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:30:08,033 INFO L225 Difference]: With dead ends: 92915 [2021-10-13 19:30:08,033 INFO L226 Difference]: Without dead ends: 92317 [2021-10-13 19:30:08,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1665.0ms TimeCoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:30:08,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92317 states. [2021-10-13 19:30:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92317 to 69108. [2021-10-13 19:30:10,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69108 states, 68990 states have (on average 4.495753007682273) internal successors, (310162), 69107 states have internal predecessors, (310162), 0 states have call successors, (0), 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 19:30:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69108 states to 69108 states and 310162 transitions. [2021-10-13 19:30:11,657 INFO L78 Accepts]: Start accepts. Automaton has 69108 states and 310162 transitions. Word has length 26 [2021-10-13 19:30:11,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:30:11,657 INFO L470 AbstractCegarLoop]: Abstraction has 69108 states and 310162 transitions. [2021-10-13 19:30:11,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 28 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 69108 states and 310162 transitions. [2021-10-13 19:30:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:30:11,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:30:11,676 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:30:11,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2021-10-13 19:30:11,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-10-13 19:30:11,889 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:30:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:30:11,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1746846092, now seen corresponding path program 2 times [2021-10-13 19:30:11,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:30:11,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795132662] [2021-10-13 19:30:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:30:11,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:30:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:30:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:30:12,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:30:12,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795132662] [2021-10-13 19:30:12,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795132662] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:12,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016534909] [2021-10-13 19:30:12,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:30:12,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:30:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:30:12,306 INFO L229 MonitoredProcess]: Starting monitored process 83 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 19:30:12,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-13 19:30:13,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:30:13,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:30:13,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:30:13,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:30:13,758 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 19:30:13,826 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:13,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:30:13,899 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:13,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:30:13,978 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:13,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:14,112 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:14,113 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 26 treesize of output 25 [2021-10-13 19:30:14,282 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 19:30:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:30:14,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016534909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:14,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:30:14,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-13 19:30:14,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568546880] [2021-10-13 19:30:14,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:30:14,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:30:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:30:14,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:30:14,286 INFO L87 Difference]: Start difference. First operand 69108 states and 310162 transitions. Second operand has 29 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 28 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:30:18,482 INFO L93 Difference]: Finished difference Result 89777 states and 391450 transitions. [2021-10-13 19:30:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:30:18,482 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 28 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:30:19,118 INFO L225 Difference]: With dead ends: 89777 [2021-10-13 19:30:19,119 INFO L226 Difference]: Without dead ends: 89777 [2021-10-13 19:30:19,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2106.4ms TimeCoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:30:19,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89777 states. [2021-10-13 19:30:22,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89777 to 66568. [2021-10-13 19:30:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66568 states, 66450 states have (on average 4.437080511662905) internal successors, (294844), 66567 states have internal predecessors, (294844), 0 states have call successors, (0), 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 19:30:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66568 states to 66568 states and 294844 transitions. [2021-10-13 19:30:22,773 INFO L78 Accepts]: Start accepts. Automaton has 66568 states and 294844 transitions. Word has length 26 [2021-10-13 19:30:22,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:30:22,773 INFO L470 AbstractCegarLoop]: Abstraction has 66568 states and 294844 transitions. [2021-10-13 19:30:22,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 28 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:22,774 INFO L276 IsEmpty]: Start isEmpty. Operand 66568 states and 294844 transitions. [2021-10-13 19:30:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:30:22,792 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:30:22,792 INFO L512 BasicCegarLoop]: trace histogram [6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:30:22,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2021-10-13 19:30:22,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-10-13 19:30:22,993 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:30:22,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:30:22,994 INFO L82 PathProgramCache]: Analyzing trace with hash -744489881, now seen corresponding path program 8 times [2021-10-13 19:30:22,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:30:22,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308130158] [2021-10-13 19:30:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:30:22,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:30:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:30:24,056 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:30:24,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:30:24,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308130158] [2021-10-13 19:30:24,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308130158] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:24,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955400231] [2021-10-13 19:30:24,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:30:24,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:30:24,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:30:24,059 INFO L229 MonitoredProcess]: Starting monitored process 84 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 19:30:24,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-13 19:30:25,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:30:25,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:30:25,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 19:30:25,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:30:25,454 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:30:25,455 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 703 treesize of output 725 [2021-10-13 19:30:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:30:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:30:28,031 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:30:28,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:30:28,782 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 29 treesize of output 25 [2021-10-13 19:30:28,906 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-13 19:30:28,906 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 1 case distinctions, treesize of input 42 treesize of output 49 [2021-10-13 19:30:29,106 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:30:29,106 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 48 treesize of output 47 [2021-10-13 19:30:29,336 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:30:29,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-10-13 19:30:29,481 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:30:29,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:30:30,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955400231] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:30,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:30:30,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2021-10-13 19:30:30,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996184947] [2021-10-13 19:30:30,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:30:30,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:30:30,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:30:30,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:30:30,295 INFO L87 Difference]: Start difference. First operand 66568 states and 294844 transitions. Second operand has 34 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 33 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:30:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:30:46,005 INFO L93 Difference]: Finished difference Result 116250 states and 500028 transitions. [2021-10-13 19:30:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-13 19:30:46,006 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 33 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:30:46,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:30:46,871 INFO L225 Difference]: With dead ends: 116250 [2021-10-13 19:30:46,872 INFO L226 Difference]: Without dead ends: 116250 [2021-10-13 19:30:46,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 9724.6ms TimeCoverageRelationStatistics Valid=880, Invalid=5762, Unknown=0, NotChecked=0, Total=6642 [2021-10-13 19:30:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116250 states. [2021-10-13 19:30:50,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116250 to 70128. [2021-10-13 19:30:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70128 states, 70010 states have (on average 4.434552206827596) internal successors, (310463), 70127 states have internal predecessors, (310463), 0 states have call successors, (0), 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 19:30:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70128 states to 70128 states and 310463 transitions. [2021-10-13 19:30:51,168 INFO L78 Accepts]: Start accepts. Automaton has 70128 states and 310463 transitions. Word has length 26 [2021-10-13 19:30:51,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:30:51,169 INFO L470 AbstractCegarLoop]: Abstraction has 70128 states and 310463 transitions. [2021-10-13 19:30:51,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 33 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:30:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 70128 states and 310463 transitions. [2021-10-13 19:30:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 19:30:51,194 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:30:51,194 INFO L512 BasicCegarLoop]: trace histogram [6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:30:51,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-10-13 19:30:51,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-10-13 19:30:51,409 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-13 19:30:51,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:30:51,410 INFO L82 PathProgramCache]: Analyzing trace with hash -744489816, now seen corresponding path program 4 times [2021-10-13 19:30:51,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:30:51,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274266217] [2021-10-13 19:30:51,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:30:51,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:30:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:30:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:30:51,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:30:51,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274266217] [2021-10-13 19:30:51,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274266217] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:51,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621499348] [2021-10-13 19:30:51,886 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:30:51,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:30:51,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:30:51,889 INFO L229 MonitoredProcess]: Starting monitored process 85 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 19:30:51,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-13 19:30:53,193 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:30:53,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:30:53,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-13 19:30:53,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:30:53,466 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 19:30:53,547 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:53,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:53,624 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:53,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:53,699 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:53,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19:30:53,769 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:30:53,770 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 26 treesize of output 25 [2021-10-13 19:30:54,070 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:30:54,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621499348] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:30:54,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:30:54,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-10-13 19:30:54,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086552908] [2021-10-13 19:30:54,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:30:54,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:30:54,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:30:54,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=974, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:30:54,073 INFO L87 Difference]: Start difference. First operand 70128 states and 310463 transitions. Second operand has 33 states, 32 states have (on average 1.5625) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 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 19:30:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 19:30:54,138 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,143 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 19:30:54,177 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 19:30:54,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2021-10-13 19:30:54,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-10-13 19:30:54,340 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. [2021-10-13 19:30:54,342 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,343 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,343 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,343 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,343 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,344 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,345 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,346 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,347 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,348 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:30:54,357 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:30:54,357 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:30:54,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:30:54 BasicIcfg [2021-10-13 19:30:54,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:30:54,360 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-13 19:30:54,361 INFO L168 Benchmark]: Toolchain (without parser) took 627227.26 ms. Allocated memory was 162.5 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 137.1 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 3.7 GB. Max. memory is 8.0 GB. [2021-10-13 19:30:54,361 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 162.5 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:30:54,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.43 ms. Allocated memory is still 162.5 MB. Free memory was 136.9 MB in the beginning and 125.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:30:54,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.11 ms. Allocated memory is still 162.5 MB. Free memory was 125.5 MB in the beginning and 122.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:30:54,362 INFO L168 Benchmark]: Boogie Preprocessor took 67.21 ms. Allocated memory is still 162.5 MB. Free memory was 122.8 MB in the beginning and 120.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:30:54,362 INFO L168 Benchmark]: RCFGBuilder took 985.05 ms. Allocated memory is still 162.5 MB. Free memory was 120.7 MB in the beginning and 131.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 8.0 GB. [2021-10-13 19:30:54,362 INFO L168 Benchmark]: TraceAbstraction took 625748.85 ms. Allocated memory was 162.5 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 130.9 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 3.7 GB. Max. memory is 8.0 GB. [2021-10-13 19:30:54,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 162.5 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 339.43 ms. Allocated memory is still 162.5 MB. Free memory was 136.9 MB in the beginning and 125.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 69.11 ms. Allocated memory is still 162.5 MB. Free memory was 125.5 MB in the beginning and 122.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.21 ms. Allocated memory is still 162.5 MB. Free memory was 122.8 MB in the beginning and 120.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 985.05 ms. Allocated memory is still 162.5 MB. Free memory was 120.7 MB in the beginning and 131.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 625748.85 ms. Allocated memory was 162.5 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 130.9 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 3.7 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23423.9ms, 370 PlacesBefore, 77 PlacesAfterwards, 397 TransitionsBefore, 75 TransitionsAfterwards, 45198 CoEnabledTransitionPairs, 8 FixpointIterations, 126 TrivialSequentialCompositions, 275 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 51 ConcurrentYvCompositions, 29 ChoiceCompositions, 503 TotalNumberOfCompositions, 55253 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45756, positive: 45502, positive conditional: 0, positive unconditional: 45502, negative: 254, negative conditional: 0, negative unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32560, positive: 32481, positive conditional: 0, positive unconditional: 32481, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32560, positive: 32475, positive conditional: 0, positive unconditional: 32475, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 355, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 326, negative conditional: 0, negative unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45756, positive: 13021, positive conditional: 0, positive unconditional: 13021, negative: 175, negative conditional: 0, negative unconditional: 175, unknown: 32560, unknown conditional: 0, unknown unconditional: 32560] , Statistics on independence cache: Total cache size (in pairs): 635, Positive cache size: 607, Positive conditional cache size: 0, Positive unconditional cache size: 607, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - 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: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 94]: 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 (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 95]: 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 (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - TimeoutResultAtElement [Line: 93]: 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 (70128states) and FLOYD_HOARE automaton (currently 2 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 33 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 583 locations, 67 error locations. Started 1 CEGAR loops. OverallTime: 625425.3ms, OverallIterations: 103, TraceHistogramMax: 6, EmptinessCheckTime: 667.0ms, AutomataDifference: 265326.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23857.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8087 SDtfs, 47474 SDslu, 60197 SDs, 0 SdLazy, 72783 SolverSat, 5740 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 68683.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3269 GetRequests, 768 SyntacticMatches, 28 SemanticMatches, 2472 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17966 ImplicationChecksByTransitivity, 95550.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=83976occurred in iteration=23, InterpolantAutomatonStates: 1357, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 180252.7ms AutomataMinimizationTime, 102 MinimizatonAttempts, 980623 StatesRemovedByMinimization, 95 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1625.1ms SsaConstructionTime, 8078.8ms SatisfiabilityAnalysisTime, 80300.7ms InterpolantComputationTime, 3154 NumberOfCodeBlocks, 3129 NumberOfCodeBlocksAsserted, 265 NumberOfCheckSat, 2967 ConstructedInterpolants, 114 QuantifiedInterpolants, 39447 SizeOfPredicates, 1020 NumberOfNonLiveVariables, 17643 ConjunctsInSsa, 2128 ConjunctsInUnsatCore, 187 InterpolantComputations, 25 PerfectInterpolantSequences, 680/2614 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