/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-8c2bbc9 [2021-10-08 16:00:14,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 16:00:14,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 16:00:14,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-08 16:00:14,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-08 16:00:14,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-08 16:00:14,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-08 16:00:14,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-08 16:00:14,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-08 16:00:14,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-08 16:00:14,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-08 16:00:14,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-08 16:00:14,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 16:00:14,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 16:00:14,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 16:00:14,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 16:00:14,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 16:00:14,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 16:00:14,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 16:00:14,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 16:00:14,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 16:00:14,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 16:00:14,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 16:00:14,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 16:00:14,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-08 16:00:14,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-08 16:00:14,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-08 16:00:14,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-08 16:00:14,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-08 16:00:14,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-08 16:00:14,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-08 16:00:14,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-08 16:00:14,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-08 16:00:14,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-08 16:00:14,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-08 16:00:14,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-08 16:00:14,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-08 16:00:14,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-08 16:00:14,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 16:00:14,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 16:00:14,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 16:00:14,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 16:00:14,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 16:00:14,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 16:00:14,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 16:00:14,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 16:00:14,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 16:00:14,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 16:00:14,341 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 16:00:14,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 16:00:14,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 16:00:14,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 16:00:14,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 16:00:14,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 16:00:14,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 16:00:14,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 16:00:14,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 16:00:14,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 16:00:14,345 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 16:00:14,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 16:00:14,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 16:00:14,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 16:00:14,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 16:00:14,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 16:00:14,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 16:00:14,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 16:00:14,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:00:14,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 16:00:14,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 16:00:14,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 16:00:14,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 16:00:14,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 16:00:14,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 16:00:14,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 16:00:14,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 16:00:14,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 16:00:14,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 16:00:14,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 16:00:14,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 16:00:14,813 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 16:00:14,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-10-08 16:00:14,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f00d9c0a3/9059d4e16b9e4348948f7aa98f64cfbf/FLAGf63dde33a [2021-10-08 16:00:15,537 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 16:00:15,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-10-08 16:00:15,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f00d9c0a3/9059d4e16b9e4348948f7aa98f64cfbf/FLAGf63dde33a [2021-10-08 16:00:15,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f00d9c0a3/9059d4e16b9e4348948f7aa98f64cfbf [2021-10-08 16:00:15,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 16:00:15,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 16:00:15,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 16:00:15,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 16:00:15,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 16:00:15,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:00:15" (1/1) ... [2021-10-08 16:00:15,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdf8e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:15, skipping insertion in model container [2021-10-08 16:00:15,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:00:15" (1/1) ... [2021-10-08 16:00:15,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 16:00:15,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 16:00:16,332 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[2662,2675] [2021-10-08 16:00:16,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:00:16,386 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 16:00:16,436 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[2662,2675] [2021-10-08 16:00:16,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:00:16,461 INFO L208 MainTranslator]: Completed translation [2021-10-08 16:00:16,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16 WrapperNode [2021-10-08 16:00:16,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 16:00:16,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 16:00:16,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 16:00:16,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 16:00:16,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 16:00:16,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 16:00:16,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 16:00:16,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 16:00:16,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 16:00:16,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 16:00:16,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 16:00:16,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 16:00:16,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (1/1) ... [2021-10-08 16:00:16,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:00:16,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:16,619 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) [2021-10-08 16:00:16,631 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 [2021-10-08 16:00:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 16:00:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 16:00:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 16:00:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 16:00:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 16:00:16,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 16:00:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 16:00:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 16:00:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 16:00:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 16:00:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 16:00:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 16:00:16,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 16:00:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 16:00:16,676 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 16:00:17,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 16:00:17,671 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-08 16:00:17,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:00:17 BoogieIcfgContainer [2021-10-08 16:00:17,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 16:00:17,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 16:00:17,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 16:00:17,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 16:00:17,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 04:00:15" (1/3) ... [2021-10-08 16:00:17,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10037483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:00:17, skipping insertion in model container [2021-10-08 16:00:17,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:16" (2/3) ... [2021-10-08 16:00:17,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10037483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:00:17, skipping insertion in model container [2021-10-08 16:00:17,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:00:17" (3/3) ... [2021-10-08 16:00:17,687 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2021-10-08 16:00:17,698 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 16:00:17,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 16:00:17,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-10-08 16:00:17,699 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 16:00:17,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,770 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,772 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,777 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,780 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,780 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,780 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,781 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,781 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,783 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,784 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,786 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,787 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,787 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,787 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,787 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,787 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,787 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,788 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,788 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,788 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,789 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,789 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,790 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,790 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,791 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,791 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,792 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,792 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,793 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,794 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,806 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,806 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,806 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,806 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,807 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,811 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,811 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,811 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,811 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,812 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,813 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,816 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,817 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,817 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,817 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,817 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,817 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,818 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,820 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,820 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,821 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,822 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,822 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,824 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,825 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,825 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,825 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,826 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,826 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,826 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,826 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,828 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,828 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,828 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,828 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,830 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,830 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,831 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,831 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,831 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,833 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,833 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,835 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,836 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,836 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,837 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,847 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,849 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,849 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,851 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,851 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,859 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,860 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,860 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,860 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,860 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,860 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,861 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,861 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,861 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,862 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,862 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,863 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,863 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,863 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,863 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,863 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,863 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,864 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,869 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,869 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,872 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,872 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,873 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,875 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,875 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,875 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,875 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,878 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,878 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,878 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,880 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,880 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,882 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,882 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,882 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,882 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,883 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,888 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,889 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,889 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,891 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,891 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,891 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,894 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,896 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,896 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,896 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,897 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,897 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,897 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,897 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,904 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,905 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,907 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,907 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,907 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,907 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,907 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,908 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,908 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,908 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,908 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,908 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,908 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,909 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,909 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,909 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,909 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,909 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,909 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,910 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,911 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,911 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,911 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,911 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,911 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,911 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,912 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,913 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,914 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,914 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,916 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,916 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,918 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,919 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,920 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,920 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,920 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,920 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,920 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,920 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,921 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,921 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,921 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,921 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,921 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,921 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,922 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,922 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,922 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,922 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,922 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,922 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,923 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,924 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,924 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,924 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,924 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,924 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,925 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,926 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,926 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,926 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,926 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,926 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,926 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,927 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,927 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,927 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,927 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,927 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,927 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,928 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,928 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,928 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,928 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,928 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,929 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,929 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,929 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,929 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,929 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,931 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,931 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,931 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,931 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,931 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,933 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,933 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,934 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,934 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,934 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,934 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,934 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,934 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,935 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,935 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,935 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,935 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,938 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,938 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,938 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,938 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,938 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,941 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,941 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,943 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,944 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,949 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,949 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,949 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,949 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,950 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,951 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,951 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,951 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,951 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,951 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,952 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,957 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,958 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,958 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,958 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,958 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,958 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,959 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,959 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,959 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,959 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,959 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,960 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,960 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,960 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,961 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,961 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,961 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,961 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,961 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~j~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,968 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,969 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,970 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,971 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,971 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,972 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:17,987 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 16:00:18,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 16:00:18,073 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 [2021-10-08 16:00:18,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2021-10-08 16:00:18,109 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 16:00:18,127 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 397 transitions, 818 flow [2021-10-08 16:00:18,130 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 397 transitions, 818 flow [2021-10-08 16:00:18,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 397 transitions, 818 flow [2021-10-08 16:00:18,319 INFO L129 PetriNetUnfolder]: 37/394 cut-off events. [2021-10-08 16:00:18,320 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 16:00:18,332 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. [2021-10-08 16:00:18,412 INFO L116 LiptonReduction]: Number of co-enabled transitions 45198 [2021-10-08 16:00:41,269 INFO L131 LiptonReduction]: Checked pairs total: 55253 [2021-10-08 16:00:41,269 INFO L133 LiptonReduction]: Total number of compositions: 503 [2021-10-08 16:00:41,282 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 75 transitions, 174 flow [2021-10-08 16:00:41,681 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) [2021-10-08 16:00:41,736 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) [2021-10-08 16:00:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 16:00:41,742 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:41,742 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 16:00:41,743 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:41,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:41,749 INFO L82 PathProgramCache]: Analyzing trace with hash 55203, now seen corresponding path program 1 times [2021-10-08 16:00:41,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:41,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38519029] [2021-10-08 16:00:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:41,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:42,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:42,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:42,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38519029] [2021-10-08 16:00:42,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38519029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:42,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:42,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 16:00:42,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336410562] [2021-10-08 16:00:42,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:42,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:42,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:42,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:42,135 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) [2021-10-08 16:00:42,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:42,480 INFO L93 Difference]: Finished difference Result 12583 states and 45617 transitions. [2021-10-08 16:00:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:42,482 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 [2021-10-08 16:00:42,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:42,671 INFO L225 Difference]: With dead ends: 12583 [2021-10-08 16:00:42,671 INFO L226 Difference]: Without dead ends: 12583 [2021-10-08 16:00:42,672 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12583 states. [2021-10-08 16:00:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12583 to 6296. [2021-10-08 16:00:43,471 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) [2021-10-08 16:00:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 22815 transitions. [2021-10-08 16:00:43,523 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 22815 transitions. Word has length 2 [2021-10-08 16:00:43,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:43,523 INFO L470 AbstractCegarLoop]: Abstraction has 6296 states and 22815 transitions. [2021-10-08 16:00:43,524 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) [2021-10-08 16:00:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 22815 transitions. [2021-10-08 16:00:43,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:00:43,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:43,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:00:43,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 16:00:43,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:43,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:43,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1715594, now seen corresponding path program 1 times [2021-10-08 16:00:43,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:43,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879119996] [2021-10-08 16:00:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:43,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:43,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:43,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879119996] [2021-10-08 16:00:43,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879119996] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:43,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160347161] [2021-10-08 16:00:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:43,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:43,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:43,602 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) [2021-10-08 16:00:43,611 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 [2021-10-08 16:00:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:43,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:00:43,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:43,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160347161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:43,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:43,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-08 16:00:43,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389648032] [2021-10-08 16:00:43,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:43,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:43,751 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) [2021-10-08 16:00:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:44,034 INFO L93 Difference]: Finished difference Result 12581 states and 45615 transitions. [2021-10-08 16:00:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:44,034 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 [2021-10-08 16:00:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:44,126 INFO L225 Difference]: With dead ends: 12581 [2021-10-08 16:00:44,126 INFO L226 Difference]: Without dead ends: 12581 [2021-10-08 16:00:44,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:44,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12581 states. [2021-10-08 16:00:44,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12581 to 6294. [2021-10-08 16:00:44,700 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) [2021-10-08 16:00:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 22813 transitions. [2021-10-08 16:00:44,755 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 22813 transitions. Word has length 3 [2021-10-08 16:00:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:44,757 INFO L470 AbstractCegarLoop]: Abstraction has 6294 states and 22813 transitions. [2021-10-08 16:00:44,757 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) [2021-10-08 16:00:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 22813 transitions. [2021-10-08 16:00:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:00:44,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:44,758 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:00:44,805 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 [2021-10-08 16:00:44,973 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 [2021-10-08 16:00:44,974 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:44,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:44,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1715595, now seen corresponding path program 1 times [2021-10-08 16:00:44,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:44,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511113823] [2021-10-08 16:00:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:44,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:45,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:45,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511113823] [2021-10-08 16:00:45,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511113823] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:45,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765938270] [2021-10-08 16:00:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:45,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:45,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:45,053 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) [2021-10-08 16:00:45,054 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 [2021-10-08 16:00:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:45,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:00:45,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:45,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765938270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:45,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:45,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-08 16:00:45,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42130455] [2021-10-08 16:00:45,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:00:45,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:00:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:45,155 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) [2021-10-08 16:00:45,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:45,598 INFO L93 Difference]: Finished difference Result 18870 states and 68421 transitions. [2021-10-08 16:00:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:45,599 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 [2021-10-08 16:00:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:45,913 INFO L225 Difference]: With dead ends: 18870 [2021-10-08 16:00:45,914 INFO L226 Difference]: Without dead ends: 18870 [2021-10-08 16:00:45,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:45,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18870 states. [2021-10-08 16:00:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18870 to 6296. [2021-10-08 16:00:46,424 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) [2021-10-08 16:00:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 22817 transitions. [2021-10-08 16:00:46,464 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 22817 transitions. Word has length 3 [2021-10-08 16:00:46,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:46,464 INFO L470 AbstractCegarLoop]: Abstraction has 6296 states and 22817 transitions. [2021-10-08 16:00:46,464 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) [2021-10-08 16:00:46,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 22817 transitions. [2021-10-08 16:00:46,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 16:00:46,465 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:46,465 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-08 16:00:46,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:46,679 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 [2021-10-08 16:00:46,680 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:46,681 INFO L82 PathProgramCache]: Analyzing trace with hash 53187716, now seen corresponding path program 2 times [2021-10-08 16:00:46,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:46,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937147618] [2021-10-08 16:00:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:46,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:46,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:46,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937147618] [2021-10-08 16:00:46,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937147618] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:46,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198716361] [2021-10-08 16:00:46,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:46,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:46,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:46,757 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) [2021-10-08 16:00:46,781 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 [2021-10-08 16:00:46,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:00:46,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:46,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:00:46,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:00:46,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198716361] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:46,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:46,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-08 16:00:46,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213632977] [2021-10-08 16:00:46,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:46,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:46,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:46,874 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) [2021-10-08 16:00:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:46,948 INFO L93 Difference]: Finished difference Result 6295 states and 22816 transitions. [2021-10-08 16:00:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:46,948 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 [2021-10-08 16:00:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:46,989 INFO L225 Difference]: With dead ends: 6295 [2021-10-08 16:00:46,990 INFO L226 Difference]: Without dead ends: 6295 [2021-10-08 16:00:46,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2021-10-08 16:00:47,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 6293. [2021-10-08 16:00:47,380 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) [2021-10-08 16:00:47,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 22812 transitions. [2021-10-08 16:00:47,553 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 22812 transitions. Word has length 4 [2021-10-08 16:00:47,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:47,553 INFO L470 AbstractCegarLoop]: Abstraction has 6293 states and 22812 transitions. [2021-10-08 16:00:47,553 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) [2021-10-08 16:00:47,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 22812 transitions. [2021-10-08 16:00:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 16:00:47,559 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:47,559 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-08 16:00:47,648 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 [2021-10-08 16:00:47,760 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 [2021-10-08 16:00:47,760 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:47,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:47,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1651559312, now seen corresponding path program 1 times [2021-10-08 16:00:47,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:47,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234295406] [2021-10-08 16:00:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:47,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:47,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:47,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234295406] [2021-10-08 16:00:47,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234295406] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:47,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893482096] [2021-10-08 16:00:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:47,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:47,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:47,912 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) [2021-10-08 16:00:47,954 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 [2021-10-08 16:00:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:48,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 16:00:48,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:48,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893482096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:48,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:48,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-08 16:00:48,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457087778] [2021-10-08 16:00:48,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 16:00:48,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 16:00:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:48,103 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) [2021-10-08 16:00:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:48,586 INFO L93 Difference]: Finished difference Result 25158 states and 91226 transitions. [2021-10-08 16:00:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:00:48,591 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 [2021-10-08 16:00:48,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:48,797 INFO L225 Difference]: With dead ends: 25158 [2021-10-08 16:00:48,797 INFO L226 Difference]: Without dead ends: 25158 [2021-10-08 16:00:48,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25158 states. [2021-10-08 16:00:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25158 to 6294. [2021-10-08 16:00:49,382 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) [2021-10-08 16:00:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 22814 transitions. [2021-10-08 16:00:49,530 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 22814 transitions. Word has length 5 [2021-10-08 16:00:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:49,530 INFO L470 AbstractCegarLoop]: Abstraction has 6294 states and 22814 transitions. [2021-10-08 16:00:49,530 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) [2021-10-08 16:00:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 22814 transitions. [2021-10-08 16:00:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 16:00:49,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:49,531 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2021-10-08 16:00:49,572 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 [2021-10-08 16:00:49,744 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 [2021-10-08 16:00:49,745 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:49,746 INFO L82 PathProgramCache]: Analyzing trace with hash -341265754, now seen corresponding path program 2 times [2021-10-08 16:00:49,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:49,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807371123] [2021-10-08 16:00:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:49,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:49,818 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:49,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:49,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807371123] [2021-10-08 16:00:49,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807371123] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:49,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217153060] [2021-10-08 16:00:49,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:49,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:49,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:49,822 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) [2021-10-08 16:00:49,830 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 [2021-10-08 16:00:49,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:00:49,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:49,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:00:49,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 16:00:49,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217153060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:49,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:49,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2021-10-08 16:00:49,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531379620] [2021-10-08 16:00:49,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:49,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:49,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:00:49,941 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) [2021-10-08 16:00:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:50,009 INFO L93 Difference]: Finished difference Result 6293 states and 22813 transitions. [2021-10-08 16:00:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:50,010 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 [2021-10-08 16:00:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:50,039 INFO L225 Difference]: With dead ends: 6293 [2021-10-08 16:00:50,039 INFO L226 Difference]: Without dead ends: 6293 [2021-10-08 16:00:50,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:00:50,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2021-10-08 16:00:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6290. [2021-10-08 16:00:50,358 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) [2021-10-08 16:00:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6290 states to 6290 states and 22807 transitions. [2021-10-08 16:00:50,402 INFO L78 Accepts]: Start accepts. Automaton has 6290 states and 22807 transitions. Word has length 6 [2021-10-08 16:00:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:50,402 INFO L470 AbstractCegarLoop]: Abstraction has 6290 states and 22807 transitions. [2021-10-08 16:00:50,403 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) [2021-10-08 16:00:50,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6290 states and 22807 transitions. [2021-10-08 16:00:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:00:50,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:50,404 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:50,446 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 [2021-10-08 16:00:50,617 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 [2021-10-08 16:00:50,618 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:50,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:50,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1962127292, now seen corresponding path program 1 times [2021-10-08 16:00:50,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:50,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889107648] [2021-10-08 16:00:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:50,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:50,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:50,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889107648] [2021-10-08 16:00:50,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889107648] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:50,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:50,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:00:50,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013670916] [2021-10-08 16:00:50,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:50,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:50,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:50,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:50,670 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) [2021-10-08 16:00:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:50,801 INFO L93 Difference]: Finished difference Result 11226 states and 40760 transitions. [2021-10-08 16:00:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:50,802 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 [2021-10-08 16:00:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:50,850 INFO L225 Difference]: With dead ends: 11226 [2021-10-08 16:00:50,850 INFO L226 Difference]: Without dead ends: 11226 [2021-10-08 16:00:50,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:50,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2021-10-08 16:00:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 7640. [2021-10-08 16:00:51,290 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) [2021-10-08 16:00:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7640 states to 7640 states and 31253 transitions. [2021-10-08 16:00:51,542 INFO L78 Accepts]: Start accepts. Automaton has 7640 states and 31253 transitions. Word has length 7 [2021-10-08 16:00:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:51,543 INFO L470 AbstractCegarLoop]: Abstraction has 7640 states and 31253 transitions. [2021-10-08 16:00:51,543 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) [2021-10-08 16:00:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7640 states and 31253 transitions. [2021-10-08 16:00:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:00:51,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:51,547 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:51,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-08 16:00:51,547 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:51,548 INFO L82 PathProgramCache]: Analyzing trace with hash -696411993, now seen corresponding path program 1 times [2021-10-08 16:00:51,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:51,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468300975] [2021-10-08 16:00:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:51,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:51,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:51,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468300975] [2021-10-08 16:00:51,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468300975] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:51,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:51,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:00:51,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294535071] [2021-10-08 16:00:51,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:51,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:51,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:51,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:51,617 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) [2021-10-08 16:00:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:51,786 INFO L93 Difference]: Finished difference Result 13476 states and 54688 transitions. [2021-10-08 16:00:51,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:51,787 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 [2021-10-08 16:00:51,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:51,874 INFO L225 Difference]: With dead ends: 13476 [2021-10-08 16:00:51,874 INFO L226 Difference]: Without dead ends: 13476 [2021-10-08 16:00:51,875 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 [2021-10-08 16:00:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13476 states. [2021-10-08 16:00:52,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13476 to 9440. [2021-10-08 16:00:52,642 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) [2021-10-08 16:00:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9440 states to 9440 states and 43117 transitions. [2021-10-08 16:00:52,738 INFO L78 Accepts]: Start accepts. Automaton has 9440 states and 43117 transitions. Word has length 8 [2021-10-08 16:00:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:52,739 INFO L470 AbstractCegarLoop]: Abstraction has 9440 states and 43117 transitions. [2021-10-08 16:00:52,740 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) [2021-10-08 16:00:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 9440 states and 43117 transitions. [2021-10-08 16:00:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:00:52,742 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:52,742 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:52,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-08 16:00:52,742 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:52,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:52,743 INFO L82 PathProgramCache]: Analyzing trace with hash -696411992, now seen corresponding path program 1 times [2021-10-08 16:00:52,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:52,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923798828] [2021-10-08 16:00:52,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:52,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:52,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:52,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923798828] [2021-10-08 16:00:52,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923798828] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:52,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:52,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 16:00:52,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204895911] [2021-10-08 16:00:52,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:00:52,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:52,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:00:52,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:52,857 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) [2021-10-08 16:00:53,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:53,023 INFO L93 Difference]: Finished difference Result 9443 states and 43121 transitions. [2021-10-08 16:00:53,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:00:53,024 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 [2021-10-08 16:00:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:53,103 INFO L225 Difference]: With dead ends: 9443 [2021-10-08 16:00:53,103 INFO L226 Difference]: Without dead ends: 9441 [2021-10-08 16:00:53,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.2ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9441 states. [2021-10-08 16:00:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9441 to 9441. [2021-10-08 16:00:53,619 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) [2021-10-08 16:00:53,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9441 states to 9441 states and 43118 transitions. [2021-10-08 16:00:53,713 INFO L78 Accepts]: Start accepts. Automaton has 9441 states and 43118 transitions. Word has length 8 [2021-10-08 16:00:53,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:53,714 INFO L470 AbstractCegarLoop]: Abstraction has 9441 states and 43118 transitions. [2021-10-08 16:00:53,714 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) [2021-10-08 16:00:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand 9441 states and 43118 transitions. [2021-10-08 16:00:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:00:53,715 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:53,715 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:53,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-08 16:00:53,716 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:53,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:53,717 INFO L82 PathProgramCache]: Analyzing trace with hash -851270321, now seen corresponding path program 1 times [2021-10-08 16:00:53,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:53,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694903279] [2021-10-08 16:00:53,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:53,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:00:53,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:53,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694903279] [2021-10-08 16:00:53,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694903279] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:53,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:53,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 16:00:53,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982656203] [2021-10-08 16:00:53,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 16:00:53,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 16:00:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:53,827 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) [2021-10-08 16:00:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:54,665 INFO L93 Difference]: Finished difference Result 20663 states and 92644 transitions. [2021-10-08 16:00:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:00:54,666 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 [2021-10-08 16:00:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:54,901 INFO L225 Difference]: With dead ends: 20663 [2021-10-08 16:00:54,901 INFO L226 Difference]: Without dead ends: 20663 [2021-10-08 16:00:54,901 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 47.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:00:54,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20663 states. [2021-10-08 16:00:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20663 to 15285. [2021-10-08 16:00:55,739 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) [2021-10-08 16:00:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15285 states to 15285 states and 78481 transitions. [2021-10-08 16:00:56,118 INFO L78 Accepts]: Start accepts. Automaton has 15285 states and 78481 transitions. Word has length 9 [2021-10-08 16:00:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:56,118 INFO L470 AbstractCegarLoop]: Abstraction has 15285 states and 78481 transitions. [2021-10-08 16:00:56,118 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) [2021-10-08 16:00:56,119 INFO L276 IsEmpty]: Start isEmpty. Operand 15285 states and 78481 transitions. [2021-10-08 16:00:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:00:56,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:56,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:56,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-08 16:00:56,120 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:56,121 INFO L82 PathProgramCache]: Analyzing trace with hash -58420627, now seen corresponding path program 1 times [2021-10-08 16:00:56,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:56,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758038349] [2021-10-08 16:00:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:56,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:00:56,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:56,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758038349] [2021-10-08 16:00:56,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758038349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:56,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:56,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:00:56,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780215907] [2021-10-08 16:00:56,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:56,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:56,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:56,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:56,155 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) [2021-10-08 16:00:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:56,508 INFO L93 Difference]: Finished difference Result 27655 states and 142265 transitions. [2021-10-08 16:00:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:56,509 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 [2021-10-08 16:00:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:57,047 INFO L225 Difference]: With dead ends: 27655 [2021-10-08 16:00:57,047 INFO L226 Difference]: Without dead ends: 27655 [2021-10-08 16:00:57,047 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 [2021-10-08 16:00:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27655 states. [2021-10-08 16:00:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27655 to 20035. [2021-10-08 16:00:58,048 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) [2021-10-08 16:00:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20035 states to 20035 states and 109282 transitions. [2021-10-08 16:00:58,173 INFO L78 Accepts]: Start accepts. Automaton has 20035 states and 109282 transitions. Word has length 10 [2021-10-08 16:00:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:58,174 INFO L470 AbstractCegarLoop]: Abstraction has 20035 states and 109282 transitions. [2021-10-08 16:00:58,174 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) [2021-10-08 16:00:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 20035 states and 109282 transitions. [2021-10-08 16:00:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:00:58,175 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:58,175 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:58,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-08 16:00:58,175 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:00:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:58,176 INFO L82 PathProgramCache]: Analyzing trace with hash -619265455, now seen corresponding path program 1 times [2021-10-08 16:00:58,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:58,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765727353] [2021-10-08 16:00:58,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:58,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:00:58,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:58,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765727353] [2021-10-08 16:00:58,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765727353] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:58,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:58,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 16:00:58,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362953080] [2021-10-08 16:00:58,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:00:58,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:00:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:00:58,316 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) [2021-10-08 16:00:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:59,309 INFO L93 Difference]: Finished difference Result 26775 states and 128666 transitions. [2021-10-08 16:00:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:00:59,309 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 [2021-10-08 16:00:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:59,485 INFO L225 Difference]: With dead ends: 26775 [2021-10-08 16:00:59,485 INFO L226 Difference]: Without dead ends: 26775 [2021-10-08 16:00:59,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:00:59,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26775 states. [2021-10-08 16:01:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26775 to 19859. [2021-10-08 16:01:00,461 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) [2021-10-08 16:01:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19859 states to 19859 states and 108082 transitions. [2021-10-08 16:01:00,845 INFO L78 Accepts]: Start accepts. Automaton has 19859 states and 108082 transitions. Word has length 10 [2021-10-08 16:01:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:00,846 INFO L470 AbstractCegarLoop]: Abstraction has 19859 states and 108082 transitions. [2021-10-08 16:01:00,846 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) [2021-10-08 16:01:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 19859 states and 108082 transitions. [2021-10-08 16:01:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:01:00,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:00,847 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:00,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-08 16:01:00,847 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:00,847 INFO L82 PathProgramCache]: Analyzing trace with hash -619222528, now seen corresponding path program 1 times [2021-10-08 16:01:00,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:00,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902198407] [2021-10-08 16:01:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:00,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:00,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:00,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:00,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902198407] [2021-10-08 16:01:00,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902198407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:00,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139924875] [2021-10-08 16:01:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:00,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:00,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:00,892 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) [2021-10-08 16:01:00,899 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 [2021-10-08 16:01:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:00,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 16:01:00,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:01,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:01:01,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139924875] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:01,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:01,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 9 [2021-10-08 16:01:01,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211603430] [2021-10-08 16:01:01,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 16:01:01,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:01,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 16:01:01,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:01:01,080 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) [2021-10-08 16:01:01,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:01,960 INFO L93 Difference]: Finished difference Result 37424 states and 180714 transitions. [2021-10-08 16:01:01,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 16:01:01,961 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 [2021-10-08 16:01:01,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:02,454 INFO L225 Difference]: With dead ends: 37424 [2021-10-08 16:01:02,454 INFO L226 Difference]: Without dead ends: 37414 [2021-10-08 16:01:02,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 41.0ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:01:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37414 states. [2021-10-08 16:01:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37414 to 25166. [2021-10-08 16:01:03,604 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) [2021-10-08 16:01:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25166 states to 25166 states and 134755 transitions. [2021-10-08 16:01:04,165 INFO L78 Accepts]: Start accepts. Automaton has 25166 states and 134755 transitions. Word has length 10 [2021-10-08 16:01:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:04,167 INFO L470 AbstractCegarLoop]: Abstraction has 25166 states and 134755 transitions. [2021-10-08 16:01:04,167 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) [2021-10-08 16:01:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 25166 states and 134755 transitions. [2021-10-08 16:01:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:01:04,168 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:04,169 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:04,205 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 [2021-10-08 16:01:04,383 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 [2021-10-08 16:01:04,384 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:04,385 INFO L82 PathProgramCache]: Analyzing trace with hash -120661493, now seen corresponding path program 1 times [2021-10-08 16:01:04,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:04,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573045102] [2021-10-08 16:01:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:04,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:04,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:04,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573045102] [2021-10-08 16:01:04,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573045102] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:04,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817847453] [2021-10-08 16:01:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:04,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:04,508 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) [2021-10-08 16:01:04,515 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 [2021-10-08 16:01:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:04,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-08 16:01:04,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:04,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:04,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817847453] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:04,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:04,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-08 16:01:04,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993958929] [2021-10-08 16:01:04,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 16:01:04,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:04,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 16:01:04,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:01:04,716 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) [2021-10-08 16:01:06,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:06,203 INFO L93 Difference]: Finished difference Result 52074 states and 260604 transitions. [2021-10-08 16:01:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:01:06,203 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 [2021-10-08 16:01:06,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:06,613 INFO L225 Difference]: With dead ends: 52074 [2021-10-08 16:01:06,614 INFO L226 Difference]: Without dead ends: 52068 [2021-10-08 16:01:06,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 75.4ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:01:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52068 states. [2021-10-08 16:01:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52068 to 25354. [2021-10-08 16:01:08,276 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) [2021-10-08 16:01:08,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25354 states to 25354 states and 135937 transitions. [2021-10-08 16:01:08,490 INFO L78 Accepts]: Start accepts. Automaton has 25354 states and 135937 transitions. Word has length 10 [2021-10-08 16:01:08,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:08,490 INFO L470 AbstractCegarLoop]: Abstraction has 25354 states and 135937 transitions. [2021-10-08 16:01:08,490 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) [2021-10-08 16:01:08,490 INFO L276 IsEmpty]: Start isEmpty. Operand 25354 states and 135937 transitions. [2021-10-08 16:01:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 16:01:08,494 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:08,494 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:08,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-08 16:01:08,705 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 [2021-10-08 16:01:08,706 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:08,708 INFO L82 PathProgramCache]: Analyzing trace with hash 885778664, now seen corresponding path program 1 times [2021-10-08 16:01:08,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:08,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901539930] [2021-10-08 16:01:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:08,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:01:08,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:08,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901539930] [2021-10-08 16:01:08,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901539930] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:08,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932329730] [2021-10-08 16:01:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:08,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:08,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:08,752 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) [2021-10-08 16:01:08,756 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 [2021-10-08 16:01:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:08,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:01:08,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:01:08,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932329730] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:08,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:08,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:01:08,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210356397] [2021-10-08 16:01:08,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:01:08,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:01:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:01:08,894 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) [2021-10-08 16:01:09,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:09,813 INFO L93 Difference]: Finished difference Result 41234 states and 204519 transitions. [2021-10-08 16:01:09,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:01:09,817 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 [2021-10-08 16:01:09,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:10,227 INFO L225 Difference]: With dead ends: 41234 [2021-10-08 16:01:10,227 INFO L226 Difference]: Without dead ends: 41234 [2021-10-08 16:01:10,228 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:01:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41234 states. [2021-10-08 16:01:11,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41234 to 31842. [2021-10-08 16:01:11,575 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) [2021-10-08 16:01:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31842 states to 31842 states and 176635 transitions. [2021-10-08 16:01:12,219 INFO L78 Accepts]: Start accepts. Automaton has 31842 states and 176635 transitions. Word has length 11 [2021-10-08 16:01:12,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:12,219 INFO L470 AbstractCegarLoop]: Abstraction has 31842 states and 176635 transitions. [2021-10-08 16:01:12,219 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) [2021-10-08 16:01:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 31842 states and 176635 transitions. [2021-10-08 16:01:12,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 16:01:12,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:12,220 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:12,243 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 [2021-10-08 16:01:12,428 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 [2021-10-08 16:01:12,429 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:12,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:12,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1811039382, now seen corresponding path program 1 times [2021-10-08 16:01:12,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:12,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166366455] [2021-10-08 16:01:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:12,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:12,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:12,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166366455] [2021-10-08 16:01:12,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166366455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:12,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:12,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 16:01:12,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890809831] [2021-10-08 16:01:12,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:01:12,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:01:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:01:12,493 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) [2021-10-08 16:01:13,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:13,561 INFO L93 Difference]: Finished difference Result 49744 states and 281765 transitions. [2021-10-08 16:01:13,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:01:13,561 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 [2021-10-08 16:01:13,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:14,012 INFO L225 Difference]: With dead ends: 49744 [2021-10-08 16:01:14,012 INFO L226 Difference]: Without dead ends: 49744 [2021-10-08 16:01:14,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:01:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49744 states. [2021-10-08 16:01:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49744 to 43266. [2021-10-08 16:01:16,044 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) [2021-10-08 16:01:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43266 states to 43266 states and 250428 transitions. [2021-10-08 16:01:16,345 INFO L78 Accepts]: Start accepts. Automaton has 43266 states and 250428 transitions. Word has length 11 [2021-10-08 16:01:16,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:16,346 INFO L470 AbstractCegarLoop]: Abstraction has 43266 states and 250428 transitions. [2021-10-08 16:01:16,346 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) [2021-10-08 16:01:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 43266 states and 250428 transitions. [2021-10-08 16:01:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 16:01:16,347 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:16,347 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:16,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-08 16:01:16,347 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:16,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:16,348 INFO L82 PathProgramCache]: Analyzing trace with hash 554771733, now seen corresponding path program 1 times [2021-10-08 16:01:16,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:16,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389618934] [2021-10-08 16:01:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:16,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:16,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:16,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389618934] [2021-10-08 16:01:16,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389618934] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:16,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683464767] [2021-10-08 16:01:16,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:16,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:16,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:16,978 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) [2021-10-08 16:01:17,028 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 [2021-10-08 16:01:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:17,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-08 16:01:17,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:17,298 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 [2021-10-08 16:01:17,385 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:01:17,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:01:17,481 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:01:17,481 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 24 treesize of output 23 [2021-10-08 16:01:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:17,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683464767] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:17,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:17,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 13 [2021-10-08 16:01:17,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752996817] [2021-10-08 16:01:17,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 16:01:17,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 16:01:17,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:01:17,512 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) [2021-10-08 16:01:20,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:20,177 INFO L93 Difference]: Finished difference Result 83645 states and 453944 transitions. [2021-10-08 16:01:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:01:20,177 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 [2021-10-08 16:01:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:21,511 INFO L225 Difference]: With dead ends: 83645 [2021-10-08 16:01:21,512 INFO L226 Difference]: Without dead ends: 83645 [2021-10-08 16:01:21,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1005.9ms TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:01:21,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83645 states. [2021-10-08 16:01:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83645 to 42810. [2021-10-08 16:01:24,007 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) [2021-10-08 16:01:24,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42810 states to 42810 states and 247343 transitions. [2021-10-08 16:01:24,284 INFO L78 Accepts]: Start accepts. Automaton has 42810 states and 247343 transitions. Word has length 11 [2021-10-08 16:01:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:24,284 INFO L470 AbstractCegarLoop]: Abstraction has 42810 states and 247343 transitions. [2021-10-08 16:01:24,284 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) [2021-10-08 16:01:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 42810 states and 247343 transitions. [2021-10-08 16:01:24,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 16:01:24,285 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:24,285 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:24,310 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 [2021-10-08 16:01:24,486 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 [2021-10-08 16:01:24,486 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:24,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:24,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1053375632, now seen corresponding path program 1 times [2021-10-08 16:01:24,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:24,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900177341] [2021-10-08 16:01:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:24,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:24,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:24,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900177341] [2021-10-08 16:01:24,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900177341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:24,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683530268] [2021-10-08 16:01:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:24,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:24,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:24,650 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) [2021-10-08 16:01:24,676 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 [2021-10-08 16:01:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:25,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-08 16:01:25,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:25,402 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 [2021-10-08 16:01:25,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:01:25,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:01:25,477 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:01:25,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:01:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:25,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683530268] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:25,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:25,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-08 16:01:25,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430281855] [2021-10-08 16:01:25,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 16:01:25,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 16:01:25,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:01:25,530 INFO L87 Difference]: Start difference. First operand 42810 states and 247343 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2021-10-08 16:01:27,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:27,557 INFO L93 Difference]: Finished difference Result 70846 states and 399873 transitions. [2021-10-08 16:01:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:01:27,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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 11 [2021-10-08 16:01:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:28,161 INFO L225 Difference]: With dead ends: 70846 [2021-10-08 16:01:28,161 INFO L226 Difference]: Without dead ends: 70846 [2021-10-08 16:01:28,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 306.4ms TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-10-08 16:01:28,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70846 states. [2021-10-08 16:01:30,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70846 to 42810. [2021-10-08 16:01:30,566 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) [2021-10-08 16:01:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42810 states to 42810 states and 247339 transitions. [2021-10-08 16:01:31,464 INFO L78 Accepts]: Start accepts. Automaton has 42810 states and 247339 transitions. Word has length 11 [2021-10-08 16:01:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:31,464 INFO L470 AbstractCegarLoop]: Abstraction has 42810 states and 247339 transitions. [2021-10-08 16:01:31,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2021-10-08 16:01:31,464 INFO L276 IsEmpty]: Start isEmpty. Operand 42810 states and 247339 transitions. [2021-10-08 16:01:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 16:01:31,465 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:31,466 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:31,493 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 [2021-10-08 16:01:31,680 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 [2021-10-08 16:01:31,681 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:31,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:31,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1053375690, now seen corresponding path program 1 times [2021-10-08 16:01:31,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:31,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59595772] [2021-10-08 16:01:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:31,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:01:31,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:31,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59595772] [2021-10-08 16:01:31,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59595772] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:31,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:31,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 16:01:31,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399981693] [2021-10-08 16:01:31,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:01:31,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:31,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:01:31,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:01:31,756 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) [2021-10-08 16:01:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:33,639 INFO L93 Difference]: Finished difference Result 55401 states and 297829 transitions. [2021-10-08 16:01:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:01:33,640 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 [2021-10-08 16:01:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:34,215 INFO L225 Difference]: With dead ends: 55401 [2021-10-08 16:01:34,216 INFO L226 Difference]: Without dead ends: 55401 [2021-10-08 16:01:34,216 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 [2021-10-08 16:01:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55401 states. [2021-10-08 16:01:36,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55401 to 47622. [2021-10-08 16:01:36,300 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) [2021-10-08 16:01:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47622 states to 47622 states and 266651 transitions. [2021-10-08 16:01:37,145 INFO L78 Accepts]: Start accepts. Automaton has 47622 states and 266651 transitions. Word has length 11 [2021-10-08 16:01:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:37,146 INFO L470 AbstractCegarLoop]: Abstraction has 47622 states and 266651 transitions. [2021-10-08 16:01:37,146 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) [2021-10-08 16:01:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 47622 states and 266651 transitions. [2021-10-08 16:01:37,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:01:37,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:37,151 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:37,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-08 16:01:37,153 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:37,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:37,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1446633884, now seen corresponding path program 1 times [2021-10-08 16:01:37,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:37,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262675044] [2021-10-08 16:01:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:37,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:37,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:37,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262675044] [2021-10-08 16:01:37,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262675044] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:37,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:37,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 16:01:37,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967705067] [2021-10-08 16:01:37,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:01:37,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:01:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:01:37,405 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) [2021-10-08 16:01:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:39,285 INFO L93 Difference]: Finished difference Result 79609 states and 429564 transitions. [2021-10-08 16:01:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:01:39,285 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 [2021-10-08 16:01:39,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:39,969 INFO L225 Difference]: With dead ends: 79609 [2021-10-08 16:01:39,969 INFO L226 Difference]: Without dead ends: 79607 [2021-10-08 16:01:39,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 76.7ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:01:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79607 states. [2021-10-08 16:01:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79607 to 48114. [2021-10-08 16:01:42,484 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) [2021-10-08 16:01:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48114 states to 48114 states and 268523 transitions. [2021-10-08 16:01:43,312 INFO L78 Accepts]: Start accepts. Automaton has 48114 states and 268523 transitions. Word has length 12 [2021-10-08 16:01:43,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:43,312 INFO L470 AbstractCegarLoop]: Abstraction has 48114 states and 268523 transitions. [2021-10-08 16:01:43,313 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) [2021-10-08 16:01:43,313 INFO L276 IsEmpty]: Start isEmpty. Operand 48114 states and 268523 transitions. [2021-10-08 16:01:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:01:43,314 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:43,314 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:43,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-08 16:01:43,314 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:43,315 INFO L82 PathProgramCache]: Analyzing trace with hash -307664421, now seen corresponding path program 1 times [2021-10-08 16:01:43,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:43,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280662268] [2021-10-08 16:01:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:43,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:01:43,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:43,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280662268] [2021-10-08 16:01:43,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280662268] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:43,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376966866] [2021-10-08 16:01:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:43,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:43,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:43,388 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) [2021-10-08 16:01:43,412 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 [2021-10-08 16:01:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:43,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 16:01:43,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:43,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376966866] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:43,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:01:43,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-08 16:01:43,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619460856] [2021-10-08 16:01:43,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:01:43,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:43,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:01:43,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:01:43,602 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) [2021-10-08 16:01:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:46,046 INFO L93 Difference]: Finished difference Result 80921 states and 439826 transitions. [2021-10-08 16:01:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:01:46,047 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 [2021-10-08 16:01:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:47,841 INFO L225 Difference]: With dead ends: 80921 [2021-10-08 16:01:47,841 INFO L226 Difference]: Without dead ends: 80921 [2021-10-08 16:01:47,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 71.2ms TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-08 16:01:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80921 states. [2021-10-08 16:01:51,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80921 to 65071. [2021-10-08 16:01:51,524 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) [2021-10-08 16:01:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65071 states to 65071 states and 374089 transitions. [2021-10-08 16:01:52,125 INFO L78 Accepts]: Start accepts. Automaton has 65071 states and 374089 transitions. Word has length 12 [2021-10-08 16:01:52,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:52,127 INFO L470 AbstractCegarLoop]: Abstraction has 65071 states and 374089 transitions. [2021-10-08 16:01:52,127 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) [2021-10-08 16:01:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 65071 states and 374089 transitions. [2021-10-08 16:01:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:01:52,130 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:52,130 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:52,153 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 [2021-10-08 16:01:52,330 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 [2021-10-08 16:01:52,331 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:52,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:52,332 INFO L82 PathProgramCache]: Analyzing trace with hash -307595809, now seen corresponding path program 1 times [2021-10-08 16:01:52,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:52,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590223649] [2021-10-08 16:01:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:52,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:52,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:52,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590223649] [2021-10-08 16:01:52,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590223649] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:52,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:52,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:01:52,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683384858] [2021-10-08 16:01:52,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:01:52,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:52,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:01:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:01:52,370 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) [2021-10-08 16:01:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:53,793 INFO L93 Difference]: Finished difference Result 62926 states and 359172 transitions. [2021-10-08 16:01:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:01:53,793 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 [2021-10-08 16:01:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:54,890 INFO L225 Difference]: With dead ends: 62926 [2021-10-08 16:01:54,891 INFO L226 Difference]: Without dead ends: 62926 [2021-10-08 16:01:54,891 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 [2021-10-08 16:01:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62926 states. [2021-10-08 16:01:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62926 to 62926. [2021-10-08 16:01:57,345 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) [2021-10-08 16:01:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62926 states to 62926 states and 359172 transitions. [2021-10-08 16:01:58,472 INFO L78 Accepts]: Start accepts. Automaton has 62926 states and 359172 transitions. Word has length 12 [2021-10-08 16:01:58,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:58,472 INFO L470 AbstractCegarLoop]: Abstraction has 62926 states and 359172 transitions. [2021-10-08 16:01:58,472 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) [2021-10-08 16:01:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 62926 states and 359172 transitions. [2021-10-08 16:01:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:01:58,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:58,488 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:58,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-08 16:01:58,488 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:01:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:58,489 INFO L82 PathProgramCache]: Analyzing trace with hash -307595808, now seen corresponding path program 1 times [2021-10-08 16:01:58,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:58,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617556697] [2021-10-08 16:01:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:58,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:58,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:58,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617556697] [2021-10-08 16:01:58,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617556697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:58,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093675340] [2021-10-08 16:01:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:58,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:58,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:58,531 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) [2021-10-08 16:01:58,539 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 [2021-10-08 16:01:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:58,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:01:58,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:01:58,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093675340] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:58,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:58,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:01:58,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609010907] [2021-10-08 16:01:58,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:01:58,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:01:58,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:01:58,686 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) [2021-10-08 16:02:01,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:01,229 INFO L93 Difference]: Finished difference Result 114194 states and 623082 transitions. [2021-10-08 16:02:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:02:01,230 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 [2021-10-08 16:02:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:02,516 INFO L225 Difference]: With dead ends: 114194 [2021-10-08 16:02:02,516 INFO L226 Difference]: Without dead ends: 114194 [2021-10-08 16:02:02,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:02:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114194 states. [2021-10-08 16:02:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114194 to 83976. [2021-10-08 16:02:07,281 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) [2021-10-08 16:02:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83976 states to 83976 states and 489021 transitions. [2021-10-08 16:02:08,842 INFO L78 Accepts]: Start accepts. Automaton has 83976 states and 489021 transitions. Word has length 12 [2021-10-08 16:02:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:08,843 INFO L470 AbstractCegarLoop]: Abstraction has 83976 states and 489021 transitions. [2021-10-08 16:02:08,843 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) [2021-10-08 16:02:08,843 INFO L276 IsEmpty]: Start isEmpty. Operand 83976 states and 489021 transitions. [2021-10-08 16:02:08,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:02:08,845 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:08,845 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:08,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-08 16:02:09,045 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 [2021-10-08 16:02:09,046 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:09,047 INFO L82 PathProgramCache]: Analyzing trace with hash 156634871, now seen corresponding path program 1 times [2021-10-08 16:02:09,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:09,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344589885] [2021-10-08 16:02:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:09,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:02:09,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:09,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344589885] [2021-10-08 16:02:09,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344589885] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:09,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123982451] [2021-10-08 16:02:09,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:09,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:09,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:09,117 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) [2021-10-08 16:02:09,120 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 [2021-10-08 16:02:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:09,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:02:09,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:09,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123982451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:02:09,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:02:09,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-10-08 16:02:09,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292985812] [2021-10-08 16:02:09,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:02:09,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:02:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:02:09,295 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) [2021-10-08 16:02:10,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:10,862 INFO L93 Difference]: Finished difference Result 77974 states and 453125 transitions. [2021-10-08 16:02:10,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:02:10,863 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 [2021-10-08 16:02:10,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:12,098 INFO L225 Difference]: With dead ends: 77974 [2021-10-08 16:02:12,098 INFO L226 Difference]: Without dead ends: 77974 [2021-10-08 16:02:12,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.1ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:02:12,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77974 states. [2021-10-08 16:02:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77974 to 77974. [2021-10-08 16:02:15,433 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) [2021-10-08 16:02:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77974 states to 77974 states and 453125 transitions. [2021-10-08 16:02:16,872 INFO L78 Accepts]: Start accepts. Automaton has 77974 states and 453125 transitions. Word has length 12 [2021-10-08 16:02:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:16,875 INFO L470 AbstractCegarLoop]: Abstraction has 77974 states and 453125 transitions. [2021-10-08 16:02:16,884 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) [2021-10-08 16:02:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 77974 states and 453125 transitions. [2021-10-08 16:02:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:02:16,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:16,886 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:16,922 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 [2021-10-08 16:02:17,099 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 [2021-10-08 16:02:17,100 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:17,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:17,101 INFO L82 PathProgramCache]: Analyzing trace with hash 156634873, now seen corresponding path program 1 times [2021-10-08 16:02:17,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:17,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224179957] [2021-10-08 16:02:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:17,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:17,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:17,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224179957] [2021-10-08 16:02:17,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224179957] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:02:17,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:02:17,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:02:17,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939790333] [2021-10-08 16:02:17,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:02:17,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:02:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:02:17,137 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) [2021-10-08 16:02:18,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:18,614 INFO L93 Difference]: Finished difference Result 71972 states and 417229 transitions. [2021-10-08 16:02:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:02:18,616 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 [2021-10-08 16:02:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:19,338 INFO L225 Difference]: With dead ends: 71972 [2021-10-08 16:02:19,338 INFO L226 Difference]: Without dead ends: 71972 [2021-10-08 16:02:19,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:02:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71972 states. [2021-10-08 16:02:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71972 to 71972. [2021-10-08 16:02:22,494 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) [2021-10-08 16:02:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71972 states to 71972 states and 417229 transitions. [2021-10-08 16:02:23,794 INFO L78 Accepts]: Start accepts. Automaton has 71972 states and 417229 transitions. Word has length 12 [2021-10-08 16:02:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:23,794 INFO L470 AbstractCegarLoop]: Abstraction has 71972 states and 417229 transitions. [2021-10-08 16:02:23,794 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) [2021-10-08 16:02:23,795 INFO L276 IsEmpty]: Start isEmpty. Operand 71972 states and 417229 transitions. [2021-10-08 16:02:23,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:02:23,797 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:23,797 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:23,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-08 16:02:23,797 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:23,798 INFO L82 PathProgramCache]: Analyzing trace with hash 156634979, now seen corresponding path program 1 times [2021-10-08 16:02:23,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:23,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476570150] [2021-10-08 16:02:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:23,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:23,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:23,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:23,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476570150] [2021-10-08 16:02:23,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476570150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:02:23,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:02:23,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 16:02:23,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410246050] [2021-10-08 16:02:23,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:02:23,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:23,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:02:23,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:02:23,880 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) [2021-10-08 16:02:25,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:25,355 INFO L93 Difference]: Finished difference Result 64838 states and 363414 transitions. [2021-10-08 16:02:25,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:02:25,356 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 [2021-10-08 16:02:25,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:25,945 INFO L225 Difference]: With dead ends: 64838 [2021-10-08 16:02:25,945 INFO L226 Difference]: Without dead ends: 64739 [2021-10-08 16:02:25,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:02:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64739 states. [2021-10-08 16:02:28,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64739 to 60379. [2021-10-08 16:02:28,645 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) [2021-10-08 16:02:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60379 states to 60379 states and 341032 transitions. [2021-10-08 16:02:29,873 INFO L78 Accepts]: Start accepts. Automaton has 60379 states and 341032 transitions. Word has length 12 [2021-10-08 16:02:29,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:29,873 INFO L470 AbstractCegarLoop]: Abstraction has 60379 states and 341032 transitions. [2021-10-08 16:02:29,874 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) [2021-10-08 16:02:29,874 INFO L276 IsEmpty]: Start isEmpty. Operand 60379 states and 341032 transitions. [2021-10-08 16:02:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:02:29,876 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:29,876 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:29,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-08 16:02:29,877 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:29,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:29,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1885011828, now seen corresponding path program 2 times [2021-10-08 16:02:29,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:29,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681276952] [2021-10-08 16:02:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:29,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:30,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:30,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681276952] [2021-10-08 16:02:30,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681276952] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:02:30,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:02:30,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 16:02:30,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671780740] [2021-10-08 16:02:30,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:02:30,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:30,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:02:30,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:02:30,074 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) [2021-10-08 16:02:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:32,000 INFO L93 Difference]: Finished difference Result 55507 states and 309901 transitions. [2021-10-08 16:02:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:02:32,000 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 [2021-10-08 16:02:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:32,747 INFO L225 Difference]: With dead ends: 55507 [2021-10-08 16:02:32,747 INFO L226 Difference]: Without dead ends: 55497 [2021-10-08 16:02:32,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.1ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:02:32,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55497 states. [2021-10-08 16:02:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55497 to 54003. [2021-10-08 16:02:35,151 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) [2021-10-08 16:02:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54003 states to 54003 states and 304079 transitions. [2021-10-08 16:02:36,189 INFO L78 Accepts]: Start accepts. Automaton has 54003 states and 304079 transitions. Word has length 12 [2021-10-08 16:02:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:36,189 INFO L470 AbstractCegarLoop]: Abstraction has 54003 states and 304079 transitions. [2021-10-08 16:02:36,190 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) [2021-10-08 16:02:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 54003 states and 304079 transitions. [2021-10-08 16:02:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 16:02:36,193 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:36,194 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:36,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-08 16:02:36,197 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:36,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:36,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1150639736, now seen corresponding path program 1 times [2021-10-08 16:02:36,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:36,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979318192] [2021-10-08 16:02:36,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:36,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:36,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:36,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979318192] [2021-10-08 16:02:36,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979318192] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:36,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60828725] [2021-10-08 16:02:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:36,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:36,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:36,402 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) [2021-10-08 16:02:36,411 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 [2021-10-08 16:02:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:36,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-08 16:02:36,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:36,626 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 [2021-10-08 16:02:36,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:36,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:02:36,732 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:36,733 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 26 treesize of output 25 [2021-10-08 16:02:36,786 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:36,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:02:36,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:36,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60828725] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:36,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:36,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-08 16:02:36,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674831249] [2021-10-08 16:02:36,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-08 16:02:36,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:36,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-08 16:02:36,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:02:36,824 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) [2021-10-08 16:02:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:38,827 INFO L93 Difference]: Finished difference Result 56686 states and 314292 transitions. [2021-10-08 16:02:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:02:38,828 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 [2021-10-08 16:02:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:39,348 INFO L225 Difference]: With dead ends: 56686 [2021-10-08 16:02:39,348 INFO L226 Difference]: Without dead ends: 56686 [2021-10-08 16:02:39,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 450.9ms TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-10-08 16:02:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56686 states. [2021-10-08 16:02:41,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56686 to 54003. [2021-10-08 16:02:41,416 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) [2021-10-08 16:02:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54003 states to 54003 states and 303809 transitions. [2021-10-08 16:02:42,428 INFO L78 Accepts]: Start accepts. Automaton has 54003 states and 303809 transitions. Word has length 12 [2021-10-08 16:02:42,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:42,428 INFO L470 AbstractCegarLoop]: Abstraction has 54003 states and 303809 transitions. [2021-10-08 16:02:42,428 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) [2021-10-08 16:02:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 54003 states and 303809 transitions. [2021-10-08 16:02:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:02:42,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:42,431 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:42,460 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 [2021-10-08 16:02:42,642 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 [2021-10-08 16:02:42,643 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:42,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:42,644 INFO L82 PathProgramCache]: Analyzing trace with hash 829873579, now seen corresponding path program 2 times [2021-10-08 16:02:42,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:42,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115798169] [2021-10-08 16:02:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:42,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:02:42,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:42,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115798169] [2021-10-08 16:02:42,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115798169] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:42,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549085075] [2021-10-08 16:02:42,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:02:42,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:42,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:42,684 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) [2021-10-08 16:02:42,693 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 [2021-10-08 16:02:42,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:02:42,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:02:42,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:02:42,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 16:02:42,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549085075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:42,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:42,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2021-10-08 16:02:42,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297140869] [2021-10-08 16:02:42,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 16:02:42,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 16:02:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:02:42,874 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) [2021-10-08 16:02:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:44,562 INFO L93 Difference]: Finished difference Result 91665 states and 465351 transitions. [2021-10-08 16:02:44,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:02:44,563 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 [2021-10-08 16:02:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:45,899 INFO L225 Difference]: With dead ends: 91665 [2021-10-08 16:02:45,899 INFO L226 Difference]: Without dead ends: 91565 [2021-10-08 16:02:45,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.6ms TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:02:46,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91565 states. [2021-10-08 16:02:48,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91565 to 30946. [2021-10-08 16:02:48,303 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) [2021-10-08 16:02:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30946 states to 30946 states and 159133 transitions. [2021-10-08 16:02:48,530 INFO L78 Accepts]: Start accepts. Automaton has 30946 states and 159133 transitions. Word has length 13 [2021-10-08 16:02:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:48,530 INFO L470 AbstractCegarLoop]: Abstraction has 30946 states and 159133 transitions. [2021-10-08 16:02:48,530 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) [2021-10-08 16:02:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 30946 states and 159133 transitions. [2021-10-08 16:02:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:02:48,533 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:48,533 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:48,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-08 16:02:48,746 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 [2021-10-08 16:02:48,747 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:48,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:48,747 INFO L82 PathProgramCache]: Analyzing trace with hash -944751572, now seen corresponding path program 1 times [2021-10-08 16:02:48,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:48,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154330269] [2021-10-08 16:02:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:48,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:48,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:02:48,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:48,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154330269] [2021-10-08 16:02:48,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154330269] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:48,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097743799] [2021-10-08 16:02:48,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:48,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:48,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:48,806 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) [2021-10-08 16:02:48,828 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 [2021-10-08 16:02:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:48,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 16:02:48,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:02:49,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097743799] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:49,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:49,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-08 16:02:49,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979226097] [2021-10-08 16:02:49,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 16:02:49,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:49,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 16:02:49,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:02:49,076 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) [2021-10-08 16:02:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:49,397 INFO L93 Difference]: Finished difference Result 23344 states and 115112 transitions. [2021-10-08 16:02:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:02:49,398 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 [2021-10-08 16:02:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:50,096 INFO L225 Difference]: With dead ends: 23344 [2021-10-08 16:02:50,096 INFO L226 Difference]: Without dead ends: 23169 [2021-10-08 16:02:50,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 83.0ms TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:02:50,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23169 states. [2021-10-08 16:02:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23169 to 22655. [2021-10-08 16:02:50,738 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) [2021-10-08 16:02:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22655 states to 22655 states and 113166 transitions. [2021-10-08 16:02:51,242 INFO L78 Accepts]: Start accepts. Automaton has 22655 states and 113166 transitions. Word has length 13 [2021-10-08 16:02:51,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:51,243 INFO L470 AbstractCegarLoop]: Abstraction has 22655 states and 113166 transitions. [2021-10-08 16:02:51,243 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) [2021-10-08 16:02:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 22655 states and 113166 transitions. [2021-10-08 16:02:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:02:51,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:51,246 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:51,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-08 16:02:51,460 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 [2021-10-08 16:02:51,460 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:51,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:51,461 INFO L82 PathProgramCache]: Analyzing trace with hash 119972704, now seen corresponding path program 1 times [2021-10-08 16:02:51,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:51,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697763472] [2021-10-08 16:02:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:51,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:51,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:51,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697763472] [2021-10-08 16:02:51,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697763472] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:51,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20845118] [2021-10-08 16:02:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:51,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:51,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:51,573 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) [2021-10-08 16:02:51,585 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 [2021-10-08 16:02:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:51,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-08 16:02:51,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:51,812 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 [2021-10-08 16:02:51,871 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:51,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:02:51,942 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:51,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:02:52,045 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:52,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:02:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:52,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20845118] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:52,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:52,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-08 16:02:52,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488070922] [2021-10-08 16:02:52,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-08 16:02:52,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-08 16:02:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-08 16:02:52,077 INFO L87 Difference]: Start difference. First operand 22655 states and 113166 transitions. Second operand has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 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) [2021-10-08 16:02:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:53,447 INFO L93 Difference]: Finished difference Result 40686 states and 178017 transitions. [2021-10-08 16:02:53,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:02:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 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 [2021-10-08 16:02:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:54,066 INFO L225 Difference]: With dead ends: 40686 [2021-10-08 16:02:54,066 INFO L226 Difference]: Without dead ends: 40680 [2021-10-08 16:02:54,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 536.5ms TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:02:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40680 states. [2021-10-08 16:02:55,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40680 to 22704. [2021-10-08 16:02:55,131 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) [2021-10-08 16:02:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22704 states to 22704 states and 110870 transitions. [2021-10-08 16:02:55,264 INFO L78 Accepts]: Start accepts. Automaton has 22704 states and 110870 transitions. Word has length 13 [2021-10-08 16:02:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:55,264 INFO L470 AbstractCegarLoop]: Abstraction has 22704 states and 110870 transitions. [2021-10-08 16:02:55,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 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) [2021-10-08 16:02:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 22704 states and 110870 transitions. [2021-10-08 16:02:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:02:55,265 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:55,265 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:55,289 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 [2021-10-08 16:02:55,472 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 [2021-10-08 16:02:55,474 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:55,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:55,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1170026201, now seen corresponding path program 1 times [2021-10-08 16:02:55,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:55,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73388051] [2021-10-08 16:02:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:55,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:55,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:55,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73388051] [2021-10-08 16:02:55,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73388051] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:55,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186802413] [2021-10-08 16:02:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:55,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:55,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:55,546 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) [2021-10-08 16:02:55,567 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 [2021-10-08 16:02:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:55,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 16:02:55,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:55,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186802413] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:55,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:55,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-10-08 16:02:55,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417077179] [2021-10-08 16:02:55,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 16:02:55,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:55,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 16:02:55,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:02:55,796 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) [2021-10-08 16:02:56,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:56,329 INFO L93 Difference]: Finished difference Result 22942 states and 103244 transitions. [2021-10-08 16:02:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:02:56,329 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 [2021-10-08 16:02:56,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:56,447 INFO L225 Difference]: With dead ends: 22942 [2021-10-08 16:02:56,447 INFO L226 Difference]: Without dead ends: 22723 [2021-10-08 16:02:56,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 83.9ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:02:56,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22723 states. [2021-10-08 16:02:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22723 to 20605. [2021-10-08 16:02:57,243 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) [2021-10-08 16:02:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20605 states to 20605 states and 94888 transitions. [2021-10-08 16:02:57,347 INFO L78 Accepts]: Start accepts. Automaton has 20605 states and 94888 transitions. Word has length 13 [2021-10-08 16:02:57,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:57,348 INFO L470 AbstractCegarLoop]: Abstraction has 20605 states and 94888 transitions. [2021-10-08 16:02:57,348 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) [2021-10-08 16:02:57,348 INFO L276 IsEmpty]: Start isEmpty. Operand 20605 states and 94888 transitions. [2021-10-08 16:02:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:02:57,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:57,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:57,375 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 [2021-10-08 16:02:57,561 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 [2021-10-08 16:02:57,562 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:02:57,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:57,563 INFO L82 PathProgramCache]: Analyzing trace with hash 558350585, now seen corresponding path program 1 times [2021-10-08 16:02:57,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:57,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336177599] [2021-10-08 16:02:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:57,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:57,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:57,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336177599] [2021-10-08 16:02:57,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336177599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:57,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411509330] [2021-10-08 16:02:57,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:57,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:57,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:57,745 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) [2021-10-08 16:02:57,778 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 [2021-10-08 16:02:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:57,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-08 16:02:57,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:58,001 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 [2021-10-08 16:02:58,057 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:58,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:02:58,173 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:58,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:02:58,232 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:58,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:02:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:02:58,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411509330] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:58,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:58,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-10-08 16:02:58,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897412509] [2021-10-08 16:02:58,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 16:02:58,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:58,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 16:02:58,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:02:58,514 INFO L87 Difference]: Start difference. First operand 20605 states and 94888 transitions. Second operand has 14 states, 13 states have (on average 1.6923076923076923) 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) [2021-10-08 16:02:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:59,301 INFO L93 Difference]: Finished difference Result 26899 states and 117713 transitions. [2021-10-08 16:02:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:02:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6923076923076923) 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 13 [2021-10-08 16:02:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:59,427 INFO L225 Difference]: With dead ends: 26899 [2021-10-08 16:02:59,428 INFO L226 Difference]: Without dead ends: 26899 [2021-10-08 16:02:59,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 263.7ms TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2021-10-08 16:02:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26899 states. [2021-10-08 16:03:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26899 to 20605. [2021-10-08 16:03:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20605 states, 20214 states have (on average 4.596121499950529) internal successors, (92906), 20604 states have internal predecessors, (92906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20605 states to 20605 states and 92906 transitions. [2021-10-08 16:03:00,275 INFO L78 Accepts]: Start accepts. Automaton has 20605 states and 92906 transitions. Word has length 13 [2021-10-08 16:03:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:00,276 INFO L470 AbstractCegarLoop]: Abstraction has 20605 states and 92906 transitions. [2021-10-08 16:03:00,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6923076923076923) 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) [2021-10-08 16:03:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 20605 states and 92906 transitions. [2021-10-08 16:03:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:03:00,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:00,277 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:00,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-08 16:03:00,477 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 [2021-10-08 16:03:00,478 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:00,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:00,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1318198066, now seen corresponding path program 1 times [2021-10-08 16:03:00,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:00,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304843087] [2021-10-08 16:03:00,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:00,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:03:00,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:00,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304843087] [2021-10-08 16:03:00,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304843087] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:00,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344769167] [2021-10-08 16:03:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:00,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:00,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:00,522 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) [2021-10-08 16:03:00,540 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 [2021-10-08 16:03:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:00,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:03:00,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:03:00,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344769167] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:00,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:00,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:03:00,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106530041] [2021-10-08 16:03:00,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:03:00,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:00,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:03:00,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:03:00,734 INFO L87 Difference]: Start difference. First operand 20605 states and 92906 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) [2021-10-08 16:03:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:01,562 INFO L93 Difference]: Finished difference Result 37609 states and 165973 transitions. [2021-10-08 16:03:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:03:01,562 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 [2021-10-08 16:03:01,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:01,879 INFO L225 Difference]: With dead ends: 37609 [2021-10-08 16:03:01,880 INFO L226 Difference]: Without dead ends: 37609 [2021-10-08 16:03:01,880 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:03:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37609 states. [2021-10-08 16:03:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37609 to 23079. [2021-10-08 16:03:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23079 states, 22688 states have (on average 4.87680712270804) internal successors, (110645), 23078 states have internal predecessors, (110645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23079 states to 23079 states and 110645 transitions. [2021-10-08 16:03:03,277 INFO L78 Accepts]: Start accepts. Automaton has 23079 states and 110645 transitions. Word has length 13 [2021-10-08 16:03:03,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:03,278 INFO L470 AbstractCegarLoop]: Abstraction has 23079 states and 110645 transitions. [2021-10-08 16:03:03,278 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) [2021-10-08 16:03:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 23079 states and 110645 transitions. [2021-10-08 16:03:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:03:03,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:03,279 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:03,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-10-08 16:03:03,480 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 [2021-10-08 16:03:03,480 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:03,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:03,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1318198065, now seen corresponding path program 1 times [2021-10-08 16:03:03,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:03,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597928347] [2021-10-08 16:03:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:03,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:03,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:03,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597928347] [2021-10-08 16:03:03,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597928347] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:03,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073223874] [2021-10-08 16:03:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:03,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:03,576 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) [2021-10-08 16:03:03,609 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 [2021-10-08 16:03:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:03,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 16:03:03,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:03,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073223874] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:03,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:03,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-10-08 16:03:03,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012529303] [2021-10-08 16:03:03,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 16:03:03,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:03,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 16:03:03,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:03:03,922 INFO L87 Difference]: Start difference. First operand 23079 states and 110645 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) [2021-10-08 16:03:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:05,726 INFO L93 Difference]: Finished difference Result 47891 states and 226402 transitions. [2021-10-08 16:03:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:03:05,726 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 [2021-10-08 16:03:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:06,089 INFO L225 Difference]: With dead ends: 47891 [2021-10-08 16:03:06,089 INFO L226 Difference]: Without dead ends: 47861 [2021-10-08 16:03:06,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 163.2ms TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-10-08 16:03:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47861 states. [2021-10-08 16:03:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47861 to 36947. [2021-10-08 16:03:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36947 states, 36556 states have (on average 5.179013021118284) internal successors, (189324), 36946 states have internal predecessors, (189324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36947 states to 36947 states and 189324 transitions. [2021-10-08 16:03:08,237 INFO L78 Accepts]: Start accepts. Automaton has 36947 states and 189324 transitions. Word has length 13 [2021-10-08 16:03:08,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:08,237 INFO L470 AbstractCegarLoop]: Abstraction has 36947 states and 189324 transitions. [2021-10-08 16:03:08,237 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) [2021-10-08 16:03:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 36947 states and 189324 transitions. [2021-10-08 16:03:08,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:08,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:08,242 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:08,266 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 [2021-10-08 16:03:08,444 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 [2021-10-08 16:03:08,445 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:08,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:08,446 INFO L82 PathProgramCache]: Analyzing trace with hash -617873435, now seen corresponding path program 2 times [2021-10-08 16:03:08,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:08,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356091715] [2021-10-08 16:03:08,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:08,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:08,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:08,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356091715] [2021-10-08 16:03:08,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356091715] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:08,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:03:08,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 16:03:08,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280955723] [2021-10-08 16:03:08,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 16:03:08,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:08,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 16:03:08,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:03:08,542 INFO L87 Difference]: Start difference. First operand 36947 states and 189324 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) [2021-10-08 16:03:09,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:09,605 INFO L93 Difference]: Finished difference Result 36335 states and 186248 transitions. [2021-10-08 16:03:09,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:03:09,608 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 [2021-10-08 16:03:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:09,955 INFO L225 Difference]: With dead ends: 36335 [2021-10-08 16:03:09,956 INFO L226 Difference]: Without dead ends: 36335 [2021-10-08 16:03:09,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.6ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:03:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36335 states. [2021-10-08 16:03:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36335 to 36155. [2021-10-08 16:03:11,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36155 states, 35764 states have (on average 5.190918241807404) internal successors, (185648), 36154 states have internal predecessors, (185648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36155 states to 36155 states and 185648 transitions. [2021-10-08 16:03:11,876 INFO L78 Accepts]: Start accepts. Automaton has 36155 states and 185648 transitions. Word has length 14 [2021-10-08 16:03:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:11,876 INFO L470 AbstractCegarLoop]: Abstraction has 36155 states and 185648 transitions. [2021-10-08 16:03:11,876 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) [2021-10-08 16:03:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 36155 states and 185648 transitions. [2021-10-08 16:03:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:11,887 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:11,888 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:11,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-08 16:03:11,888 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:11,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:11,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1307447464, now seen corresponding path program 1 times [2021-10-08 16:03:11,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:11,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984145674] [2021-10-08 16:03:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:11,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:12,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:12,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984145674] [2021-10-08 16:03:12,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984145674] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:12,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721348859] [2021-10-08 16:03:12,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:12,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:12,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:12,018 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) [2021-10-08 16:03:12,047 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 [2021-10-08 16:03:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:12,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 16:03:12,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:12,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721348859] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:12,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:12,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-10-08 16:03:12,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425506133] [2021-10-08 16:03:12,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 16:03:12,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:12,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 16:03:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:03:12,327 INFO L87 Difference]: Start difference. First operand 36155 states and 185648 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) [2021-10-08 16:03:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:12,943 INFO L93 Difference]: Finished difference Result 37755 states and 190927 transitions. [2021-10-08 16:03:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:03:12,944 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 [2021-10-08 16:03:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:13,160 INFO L225 Difference]: With dead ends: 37755 [2021-10-08 16:03:13,160 INFO L226 Difference]: Without dead ends: 37755 [2021-10-08 16:03:13,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 95.5ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:03:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37755 states. [2021-10-08 16:03:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37755 to 36263. [2021-10-08 16:03:15,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36263 states, 35872 states have (on average 5.176098349687779) internal successors, (185677), 36262 states have internal predecessors, (185677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36263 states to 36263 states and 185677 transitions. [2021-10-08 16:03:15,659 INFO L78 Accepts]: Start accepts. Automaton has 36263 states and 185677 transitions. Word has length 14 [2021-10-08 16:03:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:15,659 INFO L470 AbstractCegarLoop]: Abstraction has 36263 states and 185677 transitions. [2021-10-08 16:03:15,659 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) [2021-10-08 16:03:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 36263 states and 185677 transitions. [2021-10-08 16:03:15,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:15,661 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:15,661 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:15,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-08 16:03:15,875 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 [2021-10-08 16:03:15,876 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:15,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:15,878 INFO L82 PathProgramCache]: Analyzing trace with hash 653150179, now seen corresponding path program 2 times [2021-10-08 16:03:15,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:15,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20633086] [2021-10-08 16:03:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:15,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:16,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:16,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:16,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20633086] [2021-10-08 16:03:16,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20633086] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:16,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139772012] [2021-10-08 16:03:16,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:03:16,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:16,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:16,070 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) [2021-10-08 16:03:16,095 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 [2021-10-08 16:03:16,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:03:16,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:03:16,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-08 16:03:16,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:16,370 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 [2021-10-08 16:03:16,422 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:16,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:03:16,483 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:16,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:03:16,540 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:16,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:16,586 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:16,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:16,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139772012] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:16,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:16,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-08 16:03:16,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227984395] [2021-10-08 16:03:16,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-08 16:03:16,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:16,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-08 16:03:16,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-10-08 16:03:16,621 INFO L87 Difference]: Start difference. First operand 36263 states and 185677 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) [2021-10-08 16:03:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:18,094 INFO L93 Difference]: Finished difference Result 53421 states and 270946 transitions. [2021-10-08 16:03:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:03:18,094 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 [2021-10-08 16:03:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:18,443 INFO L225 Difference]: With dead ends: 53421 [2021-10-08 16:03:18,443 INFO L226 Difference]: Without dead ends: 53421 [2021-10-08 16:03:18,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 305.6ms TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:03:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53421 states. [2021-10-08 16:03:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53421 to 39299. [2021-10-08 16:03:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39299 states, 38908 states have (on average 5.2929731674719855) internal successors, (205939), 39298 states have internal predecessors, (205939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39299 states to 39299 states and 205939 transitions. [2021-10-08 16:03:20,604 INFO L78 Accepts]: Start accepts. Automaton has 39299 states and 205939 transitions. Word has length 14 [2021-10-08 16:03:20,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:20,605 INFO L470 AbstractCegarLoop]: Abstraction has 39299 states and 205939 transitions. [2021-10-08 16:03:20,605 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) [2021-10-08 16:03:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 39299 states and 205939 transitions. [2021-10-08 16:03:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:20,607 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:20,607 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:20,637 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 [2021-10-08 16:03:20,821 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 [2021-10-08 16:03:20,822 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:20,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:20,823 INFO L82 PathProgramCache]: Analyzing trace with hash 653150244, now seen corresponding path program 1 times [2021-10-08 16:03:20,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:20,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896596640] [2021-10-08 16:03:20,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:20,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:21,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:21,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:21,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896596640] [2021-10-08 16:03:21,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896596640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:21,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718164206] [2021-10-08 16:03:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:21,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:21,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:21,539 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) [2021-10-08 16:03:21,545 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 [2021-10-08 16:03:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:21,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 16:03:21,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:21,929 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:03:21,929 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 [2021-10-08 16:03:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:03:24,452 INFO L354 Elim1Store]: treesize reduction 148, result has 31.8 percent of original size [2021-10-08 16:03:24,453 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 80 treesize of output 132 [2021-10-08 16:03:24,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-08 16:03:24,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:03:24,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-10-08 16:03:24,750 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:24,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-08 16:03:24,805 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:24,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:24,854 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:24,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:24,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718164206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:24,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:24,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-08 16:03:24,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208540862] [2021-10-08 16:03:24,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-08 16:03:24,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-08 16:03:24,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-10-08 16:03:24,886 INFO L87 Difference]: Start difference. First operand 39299 states and 205939 transitions. Second operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 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) [2021-10-08 16:03:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:27,713 INFO L93 Difference]: Finished difference Result 62040 states and 294519 transitions. [2021-10-08 16:03:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:03:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 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 14 [2021-10-08 16:03:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:28,216 INFO L225 Difference]: With dead ends: 62040 [2021-10-08 16:03:28,216 INFO L226 Difference]: Without dead ends: 62040 [2021-10-08 16:03:28,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1353.6ms TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:03:28,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62040 states. [2021-10-08 16:03:29,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62040 to 38599. [2021-10-08 16:03:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38599 states, 38208 states have (on average 5.222806742043551) internal successors, (199553), 38598 states have internal predecessors, (199553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38599 states to 38599 states and 199553 transitions. [2021-10-08 16:03:30,506 INFO L78 Accepts]: Start accepts. Automaton has 38599 states and 199553 transitions. Word has length 14 [2021-10-08 16:03:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:30,506 INFO L470 AbstractCegarLoop]: Abstraction has 38599 states and 199553 transitions. [2021-10-08 16:03:30,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 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) [2021-10-08 16:03:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38599 states and 199553 transitions. [2021-10-08 16:03:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:30,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:30,508 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:30,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-08 16:03:30,721 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 [2021-10-08 16:03:30,722 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:30,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:30,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2082614705, now seen corresponding path program 1 times [2021-10-08 16:03:30,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:30,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692617008] [2021-10-08 16:03:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:30,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:30,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:30,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692617008] [2021-10-08 16:03:30,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692617008] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:30,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888119605] [2021-10-08 16:03:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:30,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:30,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:30,876 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) [2021-10-08 16:03:30,883 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 [2021-10-08 16:03:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:31,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-08 16:03:31,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:31,213 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 [2021-10-08 16:03:31,264 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:31,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:03:31,368 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:31,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:31,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888119605] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:31,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:31,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2021-10-08 16:03:31,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42307442] [2021-10-08 16:03:31,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 16:03:31,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:31,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 16:03:31,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:03:31,428 INFO L87 Difference]: Start difference. First operand 38599 states and 199553 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) [2021-10-08 16:03:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:34,325 INFO L93 Difference]: Finished difference Result 49908 states and 238215 transitions. [2021-10-08 16:03:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 16:03:34,326 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 [2021-10-08 16:03:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:34,630 INFO L225 Difference]: With dead ends: 49908 [2021-10-08 16:03:34,630 INFO L226 Difference]: Without dead ends: 49908 [2021-10-08 16:03:34,630 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 867.7ms TimeCoverageRelationStatistics Valid=305, Invalid=1335, Unknown=0, NotChecked=0, Total=1640 [2021-10-08 16:03:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49908 states. [2021-10-08 16:03:36,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49908 to 38239. [2021-10-08 16:03:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38239 states, 37848 states have (on average 5.215546396110759) internal successors, (197398), 38238 states have internal predecessors, (197398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38239 states to 38239 states and 197398 transitions. [2021-10-08 16:03:36,742 INFO L78 Accepts]: Start accepts. Automaton has 38239 states and 197398 transitions. Word has length 14 [2021-10-08 16:03:36,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:36,742 INFO L470 AbstractCegarLoop]: Abstraction has 38239 states and 197398 transitions. [2021-10-08 16:03:36,742 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) [2021-10-08 16:03:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 38239 states and 197398 transitions. [2021-10-08 16:03:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:36,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:36,744 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:36,768 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 [2021-10-08 16:03:36,944 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 [2021-10-08 16:03:36,945 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash 504978252, now seen corresponding path program 1 times [2021-10-08 16:03:36,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:36,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988185022] [2021-10-08 16:03:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:36,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:37,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:37,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988185022] [2021-10-08 16:03:37,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988185022] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:37,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443957171] [2021-10-08 16:03:37,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:37,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:37,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:37,148 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) [2021-10-08 16:03:37,149 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 [2021-10-08 16:03:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:37,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-08 16:03:37,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:37,466 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 19 treesize of output 15 [2021-10-08 16:03:37,516 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:03:37,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:37,564 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:37,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:03:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:38,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443957171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:38,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:38,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-08 16:03:38,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989808418] [2021-10-08 16:03:38,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 16:03:38,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:38,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 16:03:38,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:03:38,060 INFO L87 Difference]: Start difference. First operand 38239 states and 197398 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) [2021-10-08 16:03:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:38,982 INFO L93 Difference]: Finished difference Result 38812 states and 198907 transitions. [2021-10-08 16:03:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 16:03:38,982 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 [2021-10-08 16:03:38,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:39,230 INFO L225 Difference]: With dead ends: 38812 [2021-10-08 16:03:39,230 INFO L226 Difference]: Without dead ends: 38812 [2021-10-08 16:03:39,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 269.6ms TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:03:39,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38812 states. [2021-10-08 16:03:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38812 to 38239. [2021-10-08 16:03:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38239 states, 37848 states have (on average 5.215493553160009) internal successors, (197396), 38238 states have internal predecessors, (197396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38239 states to 38239 states and 197396 transitions. [2021-10-08 16:03:41,136 INFO L78 Accepts]: Start accepts. Automaton has 38239 states and 197396 transitions. Word has length 14 [2021-10-08 16:03:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:41,136 INFO L470 AbstractCegarLoop]: Abstraction has 38239 states and 197396 transitions. [2021-10-08 16:03:41,136 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) [2021-10-08 16:03:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 38239 states and 197396 transitions. [2021-10-08 16:03:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:41,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:41,138 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:41,163 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 [2021-10-08 16:03:41,338 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 [2021-10-08 16:03:41,339 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:41,340 INFO L82 PathProgramCache]: Analyzing trace with hash 504978310, now seen corresponding path program 1 times [2021-10-08 16:03:41,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:41,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77384915] [2021-10-08 16:03:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:41,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 16:03:41,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:41,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77384915] [2021-10-08 16:03:41,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77384915] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:41,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:03:41,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:03:41,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175098502] [2021-10-08 16:03:41,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:03:41,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:41,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:03:41,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:03:41,372 INFO L87 Difference]: Start difference. First operand 38239 states and 197396 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) [2021-10-08 16:03:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:42,276 INFO L93 Difference]: Finished difference Result 36969 states and 186231 transitions. [2021-10-08 16:03:42,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:03:42,277 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 [2021-10-08 16:03:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:42,560 INFO L225 Difference]: With dead ends: 36969 [2021-10-08 16:03:42,560 INFO L226 Difference]: Without dead ends: 36969 [2021-10-08 16:03:42,561 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 [2021-10-08 16:03:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36969 states. [2021-10-08 16:03:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36969 to 36969. [2021-10-08 16:03:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36969 states, 36634 states have (on average 5.083556259212753) internal successors, (186231), 36968 states have internal predecessors, (186231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36969 states to 36969 states and 186231 transitions. [2021-10-08 16:03:44,636 INFO L78 Accepts]: Start accepts. Automaton has 36969 states and 186231 transitions. Word has length 14 [2021-10-08 16:03:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:44,636 INFO L470 AbstractCegarLoop]: Abstraction has 36969 states and 186231 transitions. [2021-10-08 16:03:44,636 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) [2021-10-08 16:03:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 36969 states and 186231 transitions. [2021-10-08 16:03:44,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:03:44,638 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:44,638 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:44,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-08 16:03:44,638 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:44,638 INFO L82 PathProgramCache]: Analyzing trace with hash 504978312, now seen corresponding path program 1 times [2021-10-08 16:03:44,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:44,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615696334] [2021-10-08 16:03:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:44,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 16:03:44,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:44,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615696334] [2021-10-08 16:03:44,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615696334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:44,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:03:44,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:03:44,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481108026] [2021-10-08 16:03:44,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:03:44,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:44,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:03:44,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:03:44,676 INFO L87 Difference]: Start difference. First operand 36969 states and 186231 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) [2021-10-08 16:03:45,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:45,164 INFO L93 Difference]: Finished difference Result 35699 states and 175066 transitions. [2021-10-08 16:03:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:03:45,165 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 [2021-10-08 16:03:45,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:45,472 INFO L225 Difference]: With dead ends: 35699 [2021-10-08 16:03:45,472 INFO L226 Difference]: Without dead ends: 35683 [2021-10-08 16:03:45,473 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 [2021-10-08 16:03:46,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35683 states. [2021-10-08 16:03:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35683 to 28553. [2021-10-08 16:03:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28553 states, 28274 states have (on average 4.931067411756384) internal successors, (139421), 28552 states have internal predecessors, (139421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:47,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28553 states to 28553 states and 139421 transitions. [2021-10-08 16:03:47,363 INFO L78 Accepts]: Start accepts. Automaton has 28553 states and 139421 transitions. Word has length 14 [2021-10-08 16:03:47,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:47,363 INFO L470 AbstractCegarLoop]: Abstraction has 28553 states and 139421 transitions. [2021-10-08 16:03:47,363 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) [2021-10-08 16:03:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 28553 states and 139421 transitions. [2021-10-08 16:03:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:03:47,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:47,366 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:47,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-08 16:03:47,366 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:47,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1998456775, now seen corresponding path program 2 times [2021-10-08 16:03:47,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:47,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544954590] [2021-10-08 16:03:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:47,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:47,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:47,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544954590] [2021-10-08 16:03:47,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544954590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:47,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895994580] [2021-10-08 16:03:47,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:03:47,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:47,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:47,409 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) [2021-10-08 16:03:47,412 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 [2021-10-08 16:03:47,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:03:47,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:03:47,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:03:47,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 16:03:47,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895994580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:47,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:47,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2021-10-08 16:03:47,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772030483] [2021-10-08 16:03:47,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 16:03:47,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 16:03:47,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:03:47,659 INFO L87 Difference]: Start difference. First operand 28553 states and 139421 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) [2021-10-08 16:03:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:48,782 INFO L93 Difference]: Finished difference Result 57091 states and 255645 transitions. [2021-10-08 16:03:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:03:48,783 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 [2021-10-08 16:03:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:49,166 INFO L225 Difference]: With dead ends: 57091 [2021-10-08 16:03:49,166 INFO L226 Difference]: Without dead ends: 56602 [2021-10-08 16:03:49,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 41.5ms TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:03:49,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56602 states. [2021-10-08 16:03:50,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56602 to 15861. [2021-10-08 16:03:50,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15861 states, 15617 states have (on average 4.496126016520458) internal successors, (70216), 15860 states have internal predecessors, (70216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:50,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15861 states to 15861 states and 70216 transitions. [2021-10-08 16:03:50,403 INFO L78 Accepts]: Start accepts. Automaton has 15861 states and 70216 transitions. Word has length 15 [2021-10-08 16:03:50,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:50,403 INFO L470 AbstractCegarLoop]: Abstraction has 15861 states and 70216 transitions. [2021-10-08 16:03:50,403 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) [2021-10-08 16:03:50,404 INFO L276 IsEmpty]: Start isEmpty. Operand 15861 states and 70216 transitions. [2021-10-08 16:03:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:03:50,405 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:50,405 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:50,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-08 16:03:50,605 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 [2021-10-08 16:03:50,606 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:50,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1873254833, now seen corresponding path program 1 times [2021-10-08 16:03:50,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:50,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494819471] [2021-10-08 16:03:50,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:50,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:50,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:50,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494819471] [2021-10-08 16:03:50,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494819471] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:50,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031713996] [2021-10-08 16:03:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:50,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:50,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:50,725 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) [2021-10-08 16:03:50,734 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 [2021-10-08 16:03:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:50,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-08 16:03:50,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:51,075 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 [2021-10-08 16:03:51,130 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:51,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:03:51,187 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:51,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:51,291 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:51,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:03:51,326 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 [2021-10-08 16:03:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:51,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031713996] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:51,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:51,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-08 16:03:51,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869873304] [2021-10-08 16:03:51,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 16:03:51,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 16:03:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:03:51,344 INFO L87 Difference]: Start difference. First operand 15861 states and 70216 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) [2021-10-08 16:03:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:53,022 INFO L93 Difference]: Finished difference Result 21811 states and 97198 transitions. [2021-10-08 16:03:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:03:53,022 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 [2021-10-08 16:03:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:53,133 INFO L225 Difference]: With dead ends: 21811 [2021-10-08 16:03:53,133 INFO L226 Difference]: Without dead ends: 21732 [2021-10-08 16:03:53,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 884.0ms TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2021-10-08 16:03:53,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21732 states. [2021-10-08 16:03:53,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21732 to 16748. [2021-10-08 16:03:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16748 states, 16470 states have (on average 4.684942319368549) internal successors, (77161), 16747 states have internal predecessors, (77161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:53,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16748 states to 16748 states and 77161 transitions. [2021-10-08 16:03:53,863 INFO L78 Accepts]: Start accepts. Automaton has 16748 states and 77161 transitions. Word has length 15 [2021-10-08 16:03:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:53,863 INFO L470 AbstractCegarLoop]: Abstraction has 16748 states and 77161 transitions. [2021-10-08 16:03:53,863 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) [2021-10-08 16:03:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 16748 states and 77161 transitions. [2021-10-08 16:03:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:03:53,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:53,864 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:53,890 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 [2021-10-08 16:03:54,065 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 [2021-10-08 16:03:54,065 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:54,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1732138539, now seen corresponding path program 1 times [2021-10-08 16:03:54,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:54,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274178282] [2021-10-08 16:03:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:54,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:54,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:54,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274178282] [2021-10-08 16:03:54,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274178282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:54,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601395860] [2021-10-08 16:03:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:54,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:54,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:54,242 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) [2021-10-08 16:03:54,263 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 [2021-10-08 16:03:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:54,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-08 16:03:54,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:54,578 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 [2021-10-08 16:03:54,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:03:54,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-08 16:03:54,670 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:54,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:03:54,717 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:03:54,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:03:54,763 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 [2021-10-08 16:03:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:03:54,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601395860] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:54,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:54,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-08 16:03:54,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205782508] [2021-10-08 16:03:54,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-08 16:03:54,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:54,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-08 16:03:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:03:54,768 INFO L87 Difference]: Start difference. First operand 16748 states and 77161 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) [2021-10-08 16:03:56,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:56,047 INFO L93 Difference]: Finished difference Result 20106 states and 91354 transitions. [2021-10-08 16:03:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 16:03:56,048 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 [2021-10-08 16:03:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:56,482 INFO L225 Difference]: With dead ends: 20106 [2021-10-08 16:03:56,482 INFO L226 Difference]: Without dead ends: 20106 [2021-10-08 16:03:56,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 670.2ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:03:56,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20106 states. [2021-10-08 16:03:56,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20106 to 17578. [2021-10-08 16:03:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17578 states, 17300 states have (on average 4.725838150289017) internal successors, (81757), 17577 states have internal predecessors, (81757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17578 states to 17578 states and 81757 transitions. [2021-10-08 16:03:57,008 INFO L78 Accepts]: Start accepts. Automaton has 17578 states and 81757 transitions. Word has length 15 [2021-10-08 16:03:57,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:57,008 INFO L470 AbstractCegarLoop]: Abstraction has 17578 states and 81757 transitions. [2021-10-08 16:03:57,008 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) [2021-10-08 16:03:57,008 INFO L276 IsEmpty]: Start isEmpty. Operand 17578 states and 81757 transitions. [2021-10-08 16:03:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:03:57,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:57,010 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:57,033 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 [2021-10-08 16:03:57,210 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 [2021-10-08 16:03:57,210 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:57,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:57,212 INFO L82 PathProgramCache]: Analyzing trace with hash -295898376, now seen corresponding path program 1 times [2021-10-08 16:03:57,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:57,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303732819] [2021-10-08 16:03:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:57,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:57,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:57,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303732819] [2021-10-08 16:03:57,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303732819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:57,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554524364] [2021-10-08 16:03:57,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:57,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:57,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:57,373 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) [2021-10-08 16:03:57,375 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 [2021-10-08 16:03:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:57,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-08 16:03:57,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:58,181 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:03:58,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:03:58,229 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:03:58,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:03:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:58,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554524364] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:58,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:58,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-08 16:03:58,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263786371] [2021-10-08 16:03:58,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-08 16:03:58,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-08 16:03:58,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-10-08 16:03:58,288 INFO L87 Difference]: Start difference. First operand 17578 states and 81757 transitions. Second operand has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:58,769 INFO L93 Difference]: Finished difference Result 17152 states and 80015 transitions. [2021-10-08 16:03:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:03:58,769 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-08 16:03:58,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:58,862 INFO L225 Difference]: With dead ends: 17152 [2021-10-08 16:03:58,862 INFO L226 Difference]: Without dead ends: 17082 [2021-10-08 16:03:58,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 309.9ms TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:03:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17082 states. [2021-10-08 16:03:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17082 to 17082. [2021-10-08 16:03:59,559 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) [2021-10-08 16:03:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17082 states to 17082 states and 79858 transitions. [2021-10-08 16:03:59,635 INFO L78 Accepts]: Start accepts. Automaton has 17082 states and 79858 transitions. Word has length 15 [2021-10-08 16:03:59,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:59,635 INFO L470 AbstractCegarLoop]: Abstraction has 17082 states and 79858 transitions. [2021-10-08 16:03:59,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:59,635 INFO L276 IsEmpty]: Start isEmpty. Operand 17082 states and 79858 transitions. [2021-10-08 16:03:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:03:59,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:59,637 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:59,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-08 16:03:59,837 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 [2021-10-08 16:03:59,838 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:03:59,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:59,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1274196916, now seen corresponding path program 1 times [2021-10-08 16:03:59,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:59,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110780703] [2021-10-08 16:03:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:59,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:00,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:00,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110780703] [2021-10-08 16:04:00,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110780703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:00,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918343559] [2021-10-08 16:04:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:00,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:00,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:00,059 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) [2021-10-08 16:04:00,068 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 [2021-10-08 16:04:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:00,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-08 16:04:00,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:00,489 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 [2021-10-08 16:04:00,550 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:04:00,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 16:04:00,603 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:00,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:04:00,653 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:00,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:04:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:00,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918343559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:00,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:00,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-10-08 16:04:00,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473521767] [2021-10-08 16:04:00,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 16:04:00,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:00,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 16:04:00,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:04:00,717 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) [2021-10-08 16:04:01,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:01,410 INFO L93 Difference]: Finished difference Result 17262 states and 80422 transitions. [2021-10-08 16:04:01,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 16:04:01,411 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 [2021-10-08 16:04:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:01,491 INFO L225 Difference]: With dead ends: 17262 [2021-10-08 16:04:01,491 INFO L226 Difference]: Without dead ends: 17262 [2021-10-08 16:04:01,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 376.5ms TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2021-10-08 16:04:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17262 states. [2021-10-08 16:04:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17262 to 17082. [2021-10-08 16:04:02,161 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) [2021-10-08 16:04:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17082 states to 17082 states and 79828 transitions. [2021-10-08 16:04:02,249 INFO L78 Accepts]: Start accepts. Automaton has 17082 states and 79828 transitions. Word has length 15 [2021-10-08 16:04:02,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:02,249 INFO L470 AbstractCegarLoop]: Abstraction has 17082 states and 79828 transitions. [2021-10-08 16:04:02,249 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) [2021-10-08 16:04:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 17082 states and 79828 transitions. [2021-10-08 16:04:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:02,251 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:02,251 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:02,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-08 16:04:02,451 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 [2021-10-08 16:04:02,452 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:02,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:02,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2137822952, now seen corresponding path program 1 times [2021-10-08 16:04:02,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:02,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716035361] [2021-10-08 16:04:02,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:02,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:04:02,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:02,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716035361] [2021-10-08 16:04:02,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716035361] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:02,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919034325] [2021-10-08 16:04:02,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:02,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:02,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:02,654 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) [2021-10-08 16:04:02,680 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 [2021-10-08 16:04:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:02,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-08 16:04:02,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:03,079 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 [2021-10-08 16:04:03,136 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:03,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:04:03,193 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:03,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:04:03,252 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:03,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:04:03,351 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:03,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:04:03,369 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 [2021-10-08 16:04:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:04:03,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919034325] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:03,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:03,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-10-08 16:04:03,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006458506] [2021-10-08 16:04:03,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 16:04:03,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:03,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 16:04:03,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:04:03,374 INFO L87 Difference]: Start difference. First operand 17082 states and 79828 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) [2021-10-08 16:04:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:04,322 INFO L93 Difference]: Finished difference Result 20868 states and 94557 transitions. [2021-10-08 16:04:04,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:04:04,322 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 16 [2021-10-08 16:04:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:04,420 INFO L225 Difference]: With dead ends: 20868 [2021-10-08 16:04:04,420 INFO L226 Difference]: Without dead ends: 20868 [2021-10-08 16:04:04,420 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 594.5ms TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2021-10-08 16:04:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20868 states. [2021-10-08 16:04:05,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20868 to 16060. [2021-10-08 16:04:05,143 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) [2021-10-08 16:04:05,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16060 states to 16060 states and 73660 transitions. [2021-10-08 16:04:05,233 INFO L78 Accepts]: Start accepts. Automaton has 16060 states and 73660 transitions. Word has length 16 [2021-10-08 16:04:05,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:05,234 INFO L470 AbstractCegarLoop]: Abstraction has 16060 states and 73660 transitions. [2021-10-08 16:04:05,234 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) [2021-10-08 16:04:05,234 INFO L276 IsEmpty]: Start isEmpty. Operand 16060 states and 73660 transitions. [2021-10-08 16:04:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:05,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:05,236 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:05,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-10-08 16:04:05,436 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 [2021-10-08 16:04:05,437 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:05,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1220308580, now seen corresponding path program 2 times [2021-10-08 16:04:05,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:05,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423360826] [2021-10-08 16:04:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:05,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:05,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:05,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423360826] [2021-10-08 16:04:05,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423360826] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:05,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597832600] [2021-10-08 16:04:05,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:05,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:05,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:05,606 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) [2021-10-08 16:04:05,628 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 [2021-10-08 16:04:05,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:05,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:05,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-08 16:04:05,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:06,197 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:04:06,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:04:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:06,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597832600] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:06,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:06,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-10-08 16:04:06,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639361433] [2021-10-08 16:04:06,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 16:04:06,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:06,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 16:04:06,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:04:06,233 INFO L87 Difference]: Start difference. First operand 16060 states and 73660 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) 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) [2021-10-08 16:04:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:06,864 INFO L93 Difference]: Finished difference Result 22458 states and 96808 transitions. [2021-10-08 16:04:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 16:04:06,864 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) 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 16 [2021-10-08 16:04:06,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:06,973 INFO L225 Difference]: With dead ends: 22458 [2021-10-08 16:04:06,973 INFO L226 Difference]: Without dead ends: 22434 [2021-10-08 16:04:06,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 273.9ms TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-10-08 16:04:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2021-10-08 16:04:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 16150. [2021-10-08 16:04:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16150 states, 15872 states have (on average 4.66015625) internal successors, (73966), 16149 states have internal predecessors, (73966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16150 states to 16150 states and 73966 transitions. [2021-10-08 16:04:07,797 INFO L78 Accepts]: Start accepts. Automaton has 16150 states and 73966 transitions. Word has length 16 [2021-10-08 16:04:07,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:07,797 INFO L470 AbstractCegarLoop]: Abstraction has 16150 states and 73966 transitions. [2021-10-08 16:04:07,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) 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) [2021-10-08 16:04:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 16150 states and 73966 transitions. [2021-10-08 16:04:07,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:07,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:07,799 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:07,823 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 [2021-10-08 16:04:07,999 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,SelfDestructingSolverStorable49 [2021-10-08 16:04:08,000 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:08,001 INFO L82 PathProgramCache]: Analyzing trace with hash 612209510, now seen corresponding path program 1 times [2021-10-08 16:04:08,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:08,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600683013] [2021-10-08 16:04:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:08,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:04:08,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:08,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600683013] [2021-10-08 16:04:08,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600683013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:04:08,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:04:08,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:04:08,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757316010] [2021-10-08 16:04:08,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:04:08,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:08,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:04:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:04:08,035 INFO L87 Difference]: Start difference. First operand 16150 states and 73966 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) [2021-10-08 16:04:08,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:08,213 INFO L93 Difference]: Finished difference Result 14495 states and 65092 transitions. [2021-10-08 16:04:08,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:04:08,214 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 [2021-10-08 16:04:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:08,309 INFO L225 Difference]: With dead ends: 14495 [2021-10-08 16:04:08,310 INFO L226 Difference]: Without dead ends: 14495 [2021-10-08 16:04:08,310 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 [2021-10-08 16:04:08,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14495 states. [2021-10-08 16:04:09,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14495 to 14495. [2021-10-08 16:04:09,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14495 states, 14287 states have (on average 4.556029957303843) internal successors, (65092), 14494 states have internal predecessors, (65092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14495 states to 14495 states and 65092 transitions. [2021-10-08 16:04:09,119 INFO L78 Accepts]: Start accepts. Automaton has 14495 states and 65092 transitions. Word has length 16 [2021-10-08 16:04:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:09,120 INFO L470 AbstractCegarLoop]: Abstraction has 14495 states and 65092 transitions. [2021-10-08 16:04:09,120 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) [2021-10-08 16:04:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 14495 states and 65092 transitions. [2021-10-08 16:04:09,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:09,122 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:09,122 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:09,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-08 16:04:09,122 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:09,122 INFO L82 PathProgramCache]: Analyzing trace with hash 612209511, now seen corresponding path program 1 times [2021-10-08 16:04:09,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:09,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122618182] [2021-10-08 16:04:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:09,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:04:09,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:09,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122618182] [2021-10-08 16:04:09,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122618182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:04:09,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:04:09,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:04:09,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421809768] [2021-10-08 16:04:09,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:04:09,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:04:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:04:09,154 INFO L87 Difference]: Start difference. First operand 14495 states and 65092 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) [2021-10-08 16:04:09,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:09,322 INFO L93 Difference]: Finished difference Result 12940 states and 56838 transitions. [2021-10-08 16:04:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:04:09,323 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 [2021-10-08 16:04:09,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:09,413 INFO L225 Difference]: With dead ends: 12940 [2021-10-08 16:04:09,413 INFO L226 Difference]: Without dead ends: 12940 [2021-10-08 16:04:09,413 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 [2021-10-08 16:04:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12940 states. [2021-10-08 16:04:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12940 to 10853. [2021-10-08 16:04:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10853 states, 10705 states have (on average 4.415133115366651) internal successors, (47264), 10852 states have internal predecessors, (47264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10853 states to 10853 states and 47264 transitions. [2021-10-08 16:04:10,262 INFO L78 Accepts]: Start accepts. Automaton has 10853 states and 47264 transitions. Word has length 16 [2021-10-08 16:04:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:10,263 INFO L470 AbstractCegarLoop]: Abstraction has 10853 states and 47264 transitions. [2021-10-08 16:04:10,269 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) [2021-10-08 16:04:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 10853 states and 47264 transitions. [2021-10-08 16:04:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:10,272 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:10,272 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:10,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-08 16:04:10,272 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:10,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash 612209444, now seen corresponding path program 1 times [2021-10-08 16:04:10,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:10,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47565980] [2021-10-08 16:04:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:10,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:10,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:10,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:10,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47565980] [2021-10-08 16:04:10,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47565980] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:10,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456437789] [2021-10-08 16:04:10,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:10,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:10,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:10,358 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) [2021-10-08 16:04:10,360 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 [2021-10-08 16:04:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:10,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 16:04:10,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:10,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456437789] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:10,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:10,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-10-08 16:04:10,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450873954] [2021-10-08 16:04:10,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-08 16:04:10,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:10,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-08 16:04:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:04:10,804 INFO L87 Difference]: Start difference. First operand 10853 states and 47264 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) [2021-10-08 16:04:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:11,157 INFO L93 Difference]: Finished difference Result 10617 states and 43226 transitions. [2021-10-08 16:04:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:04:11,158 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 [2021-10-08 16:04:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:11,198 INFO L225 Difference]: With dead ends: 10617 [2021-10-08 16:04:11,198 INFO L226 Difference]: Without dead ends: 10174 [2021-10-08 16:04:11,198 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 110.4ms TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-10-08 16:04:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10174 states. [2021-10-08 16:04:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10174 to 9869. [2021-10-08 16:04:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9869 states, 9721 states have (on average 4.194424441929843) internal successors, (40774), 9868 states have internal predecessors, (40774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9869 states to 9869 states and 40774 transitions. [2021-10-08 16:04:11,655 INFO L78 Accepts]: Start accepts. Automaton has 9869 states and 40774 transitions. Word has length 16 [2021-10-08 16:04:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:11,655 INFO L470 AbstractCegarLoop]: Abstraction has 9869 states and 40774 transitions. [2021-10-08 16:04:11,656 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) [2021-10-08 16:04:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9869 states and 40774 transitions. [2021-10-08 16:04:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:11,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:11,657 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:11,682 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 [2021-10-08 16:04:11,857 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 [2021-10-08 16:04:11,858 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:11,859 INFO L82 PathProgramCache]: Analyzing trace with hash -63368492, now seen corresponding path program 3 times [2021-10-08 16:04:11,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:11,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923883918] [2021-10-08 16:04:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:11,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:12,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:12,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923883918] [2021-10-08 16:04:12,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923883918] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:12,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205348994] [2021-10-08 16:04:12,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:04:12,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:12,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:12,125 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) [2021-10-08 16:04:12,148 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 [2021-10-08 16:04:12,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-08 16:04:12,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:12,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-08 16:04:12,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:12,724 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:04:12,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:04:12,821 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:04:12,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:04:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:12,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205348994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:12,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:12,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 19 [2021-10-08 16:04:12,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836044886] [2021-10-08 16:04:12,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 16:04:12,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 16:04:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:04:12,857 INFO L87 Difference]: Start difference. First operand 9869 states and 40774 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) [2021-10-08 16:04:14,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:14,790 INFO L93 Difference]: Finished difference Result 12589 states and 47396 transitions. [2021-10-08 16:04:14,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 16:04:14,791 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 [2021-10-08 16:04:14,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:14,832 INFO L225 Difference]: With dead ends: 12589 [2021-10-08 16:04:14,832 INFO L226 Difference]: Without dead ends: 12412 [2021-10-08 16:04:14,832 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1334.2ms TimeCoverageRelationStatistics Valid=191, Invalid=931, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 16:04:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12412 states. [2021-10-08 16:04:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12412 to 7643. [2021-10-08 16:04:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7643 states, 7495 states have (on average 4.014009339559706) internal successors, (30085), 7642 states have internal predecessors, (30085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7643 states to 7643 states and 30085 transitions. [2021-10-08 16:04:15,200 INFO L78 Accepts]: Start accepts. Automaton has 7643 states and 30085 transitions. Word has length 16 [2021-10-08 16:04:15,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:15,200 INFO L470 AbstractCegarLoop]: Abstraction has 7643 states and 30085 transitions. [2021-10-08 16:04:15,200 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) [2021-10-08 16:04:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7643 states and 30085 transitions. [2021-10-08 16:04:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:15,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:15,201 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:15,225 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 [2021-10-08 16:04:15,402 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 [2021-10-08 16:04:15,402 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:15,404 INFO L82 PathProgramCache]: Analyzing trace with hash -47102838, now seen corresponding path program 2 times [2021-10-08 16:04:15,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:15,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991192440] [2021-10-08 16:04:15,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:15,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-08 16:04:15,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:15,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991192440] [2021-10-08 16:04:15,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991192440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:15,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263144785] [2021-10-08 16:04:15,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:15,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:15,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:15,443 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) [2021-10-08 16:04:15,449 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 [2021-10-08 16:04:15,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:04:15,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:15,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 16:04:15,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:15,845 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 [2021-10-08 16:04:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-08 16:04:15,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263144785] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:15,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:15,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2021-10-08 16:04:15,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657634951] [2021-10-08 16:04:15,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:04:15,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:04:15,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:04:15,855 INFO L87 Difference]: Start difference. First operand 7643 states and 30085 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) [2021-10-08 16:04:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:16,304 INFO L93 Difference]: Finished difference Result 25106 states and 98368 transitions. [2021-10-08 16:04:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:04:16,304 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 [2021-10-08 16:04:16,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:16,398 INFO L225 Difference]: With dead ends: 25106 [2021-10-08 16:04:16,399 INFO L226 Difference]: Without dead ends: 25106 [2021-10-08 16:04:16,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 84.0ms TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:04:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25106 states. [2021-10-08 16:04:16,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25106 to 12290. [2021-10-08 16:04:16,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12290 states, 12142 states have (on average 4.449267007082853) internal successors, (54023), 12289 states have internal predecessors, (54023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:17,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12290 states to 12290 states and 54023 transitions. [2021-10-08 16:04:17,018 INFO L78 Accepts]: Start accepts. Automaton has 12290 states and 54023 transitions. Word has length 16 [2021-10-08 16:04:17,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:17,018 INFO L470 AbstractCegarLoop]: Abstraction has 12290 states and 54023 transitions. [2021-10-08 16:04:17,018 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) [2021-10-08 16:04:17,018 INFO L276 IsEmpty]: Start isEmpty. Operand 12290 states and 54023 transitions. [2021-10-08 16:04:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:04:17,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:17,020 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:17,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-08 16:04:17,220 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 [2021-10-08 16:04:17,221 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:17,222 INFO L82 PathProgramCache]: Analyzing trace with hash -47102837, now seen corresponding path program 2 times [2021-10-08 16:04:17,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:17,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812004964] [2021-10-08 16:04:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:17,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:17,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:17,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812004964] [2021-10-08 16:04:17,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812004964] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:17,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066543682] [2021-10-08 16:04:17,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:17,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:17,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:17,320 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) [2021-10-08 16:04:17,327 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 [2021-10-08 16:04:17,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:17,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:17,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-08 16:04:17,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:17,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066543682] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:17,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:17,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-08 16:04:17,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345599583] [2021-10-08 16:04:17,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 16:04:17,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:17,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 16:04:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:04:17,865 INFO L87 Difference]: Start difference. First operand 12290 states and 54023 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) [2021-10-08 16:04:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:18,432 INFO L93 Difference]: Finished difference Result 23795 states and 102785 transitions. [2021-10-08 16:04:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:04:18,432 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 [2021-10-08 16:04:18,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:18,978 INFO L225 Difference]: With dead ends: 23795 [2021-10-08 16:04:18,978 INFO L226 Difference]: Without dead ends: 23789 [2021-10-08 16:04:18,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 202.9ms TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2021-10-08 16:04:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23789 states. [2021-10-08 16:04:19,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23789 to 19358. [2021-10-08 16:04:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19358 states, 19210 states have (on average 4.589120249869859) internal successors, (88157), 19357 states have internal predecessors, (88157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19358 states to 19358 states and 88157 transitions. [2021-10-08 16:04:20,071 INFO L78 Accepts]: Start accepts. Automaton has 19358 states and 88157 transitions. Word has length 16 [2021-10-08 16:04:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:20,075 INFO L470 AbstractCegarLoop]: Abstraction has 19358 states and 88157 transitions. [2021-10-08 16:04:20,075 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) [2021-10-08 16:04:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 19358 states and 88157 transitions. [2021-10-08 16:04:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:04:20,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:20,085 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:20,128 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 [2021-10-08 16:04:20,298 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 [2021-10-08 16:04:20,299 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:20,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1114342537, now seen corresponding path program 1 times [2021-10-08 16:04:20,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:20,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936134047] [2021-10-08 16:04:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:20,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:20,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:20,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936134047] [2021-10-08 16:04:20,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936134047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:20,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638375507] [2021-10-08 16:04:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:20,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:20,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:20,575 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) [2021-10-08 16:04:20,593 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 [2021-10-08 16:04:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:20,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-08 16:04:20,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:21,089 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:04:21,090 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 [2021-10-08 16:04:23,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:04:23,353 INFO L354 Elim1Store]: treesize reduction 148, result has 31.8 percent of original size [2021-10-08 16:04:23,353 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 80 treesize of output 132 [2021-10-08 16:04:23,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 16:04:23,695 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:04:23,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 16:04:23,755 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:23,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:04:23,787 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:23,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 16:04:23,994 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:23,994 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 25 treesize of output 24 [2021-10-08 16:04:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:24,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638375507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:24,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:24,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-10-08 16:04:24,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015679641] [2021-10-08 16:04:24,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 16:04:24,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:24,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 16:04:24,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:04:24,062 INFO L87 Difference]: Start difference. First operand 19358 states and 88157 transitions. Second operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 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) [2021-10-08 16:04:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:25,138 INFO L93 Difference]: Finished difference Result 23726 states and 103034 transitions. [2021-10-08 16:04:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:04:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 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 17 [2021-10-08 16:04:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:25,252 INFO L225 Difference]: With dead ends: 23726 [2021-10-08 16:04:25,252 INFO L226 Difference]: Without dead ends: 23654 [2021-10-08 16:04:25,253 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 734.4ms TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2021-10-08 16:04:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23654 states. [2021-10-08 16:04:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23654 to 19274. [2021-10-08 16:04:25,911 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) [2021-10-08 16:04:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19274 states to 19274 states and 86194 transitions. [2021-10-08 16:04:25,992 INFO L78 Accepts]: Start accepts. Automaton has 19274 states and 86194 transitions. Word has length 17 [2021-10-08 16:04:25,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:25,993 INFO L470 AbstractCegarLoop]: Abstraction has 19274 states and 86194 transitions. [2021-10-08 16:04:25,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 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) [2021-10-08 16:04:25,993 INFO L276 IsEmpty]: Start isEmpty. Operand 19274 states and 86194 transitions. [2021-10-08 16:04:25,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:04:25,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:25,995 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:26,019 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 [2021-10-08 16:04:26,196 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 [2021-10-08 16:04:26,196 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:26,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:26,197 INFO L82 PathProgramCache]: Analyzing trace with hash 703320808, now seen corresponding path program 2 times [2021-10-08 16:04:26,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:26,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265912488] [2021-10-08 16:04:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:26,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:26,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:26,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265912488] [2021-10-08 16:04:26,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265912488] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:26,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295919296] [2021-10-08 16:04:26,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:26,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:26,442 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) [2021-10-08 16:04:26,445 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 [2021-10-08 16:04:26,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:26,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:26,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-08 16:04:26,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:27,009 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:04:27,009 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 [2021-10-08 16:04:29,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:04:29,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:04:29,196 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-08 16:04:29,196 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 [2021-10-08 16:04:29,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-10-08 16:04:29,485 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-08 16:04:29,486 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 35 treesize of output 40 [2021-10-08 16:04:29,598 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:29,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-08 16:04:29,698 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:29,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2021-10-08 16:04:29,779 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:29,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 16:04:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:29,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295919296] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:29,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:29,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-08 16:04:29,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494335468] [2021-10-08 16:04:29,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 16:04:29,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 16:04:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:04:29,985 INFO L87 Difference]: Start difference. First operand 19274 states and 86194 transitions. Second operand has 22 states, 21 states have (on average 1.619047619047619) internal successors, (34), 21 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) [2021-10-08 16:04:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:34,282 INFO L93 Difference]: Finished difference Result 33083 states and 144287 transitions. [2021-10-08 16:04:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 16:04:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.619047619047619) internal successors, (34), 21 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 17 [2021-10-08 16:04:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:34,455 INFO L225 Difference]: With dead ends: 33083 [2021-10-08 16:04:34,455 INFO L226 Difference]: Without dead ends: 33083 [2021-10-08 16:04:34,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 3185.5ms TimeCoverageRelationStatistics Valid=378, Invalid=1514, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 16:04:34,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33083 states. [2021-10-08 16:04:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33083 to 20984. [2021-10-08 16:04:35,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20984 states, 20836 states have (on average 4.505951238241505) internal successors, (93886), 20983 states have internal predecessors, (93886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20984 states to 20984 states and 93886 transitions. [2021-10-08 16:04:35,340 INFO L78 Accepts]: Start accepts. Automaton has 20984 states and 93886 transitions. Word has length 17 [2021-10-08 16:04:35,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:35,340 INFO L470 AbstractCegarLoop]: Abstraction has 20984 states and 93886 transitions. [2021-10-08 16:04:35,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.619047619047619) internal successors, (34), 21 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) [2021-10-08 16:04:35,341 INFO L276 IsEmpty]: Start isEmpty. Operand 20984 states and 93886 transitions. [2021-10-08 16:04:35,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:04:35,343 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:35,343 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:35,368 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 [2021-10-08 16:04:35,544 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 [2021-10-08 16:04:35,545 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:35,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:35,546 INFO L82 PathProgramCache]: Analyzing trace with hash 703320873, now seen corresponding path program 1 times [2021-10-08 16:04:35,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:35,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245648663] [2021-10-08 16:04:35,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:35,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:35,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:35,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245648663] [2021-10-08 16:04:35,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245648663] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:35,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105533169] [2021-10-08 16:04:35,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:35,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:35,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:35,809 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) [2021-10-08 16:04:35,811 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 [2021-10-08 16:04:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:36,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 16:04:36,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:36,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:04:36,635 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:04:36,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:04:36,699 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:36,700 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 24 treesize of output 23 [2021-10-08 16:04:36,759 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:36,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:04:36,810 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:04:36,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:04:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:36,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105533169] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:36,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:36,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-08 16:04:36,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024802698] [2021-10-08 16:04:36,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-08 16:04:36,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:36,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-08 16:04:36,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:04:36,872 INFO L87 Difference]: Start difference. First operand 20984 states and 93886 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) [2021-10-08 16:04:37,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:37,748 INFO L93 Difference]: Finished difference Result 30620 states and 135245 transitions. [2021-10-08 16:04:37,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 16:04:37,749 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 [2021-10-08 16:04:37,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:37,912 INFO L225 Difference]: With dead ends: 30620 [2021-10-08 16:04:37,912 INFO L226 Difference]: Without dead ends: 30620 [2021-10-08 16:04:37,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 498.2ms TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:04:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30620 states. [2021-10-08 16:04:38,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30620 to 23632. [2021-10-08 16:04:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23632 states, 23484 states have (on average 4.4663174927610285) internal successors, (104887), 23631 states have internal predecessors, (104887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23632 states to 23632 states and 104887 transitions. [2021-10-08 16:04:38,909 INFO L78 Accepts]: Start accepts. Automaton has 23632 states and 104887 transitions. Word has length 17 [2021-10-08 16:04:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:38,910 INFO L470 AbstractCegarLoop]: Abstraction has 23632 states and 104887 transitions. [2021-10-08 16:04:38,910 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) [2021-10-08 16:04:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 23632 states and 104887 transitions. [2021-10-08 16:04:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:04:38,913 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:38,913 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:38,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-08 16:04:39,113 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 [2021-10-08 16:04:39,114 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:39,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:39,115 INFO L82 PathProgramCache]: Analyzing trace with hash 29123829, now seen corresponding path program 2 times [2021-10-08 16:04:39,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:39,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843317056] [2021-10-08 16:04:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:39,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:39,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:39,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843317056] [2021-10-08 16:04:39,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843317056] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:39,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342975992] [2021-10-08 16:04:39,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:39,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:39,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:39,267 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) [2021-10-08 16:04:39,296 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 [2021-10-08 16:04:39,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:39,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:39,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-08 16:04:39,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:40,176 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:04:40,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:04:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:40,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342975992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:40,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:40,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-08 16:04:40,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943587114] [2021-10-08 16:04:40,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 16:04:40,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:40,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 16:04:40,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:04:40,252 INFO L87 Difference]: Start difference. First operand 23632 states and 104887 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) [2021-10-08 16:04:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:41,185 INFO L93 Difference]: Finished difference Result 24877 states and 108214 transitions. [2021-10-08 16:04:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:04:41,186 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 [2021-10-08 16:04:41,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:41,305 INFO L225 Difference]: With dead ends: 24877 [2021-10-08 16:04:41,305 INFO L226 Difference]: Without dead ends: 24877 [2021-10-08 16:04:41,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 394.7ms TimeCoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:04:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24877 states. [2021-10-08 16:04:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24877 to 23342. [2021-10-08 16:04:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23342 states, 23194 states have (on average 4.474950418211606) internal successors, (103792), 23341 states have internal predecessors, (103792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23342 states to 23342 states and 103792 transitions. [2021-10-08 16:04:42,160 INFO L78 Accepts]: Start accepts. Automaton has 23342 states and 103792 transitions. Word has length 17 [2021-10-08 16:04:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:42,160 INFO L470 AbstractCegarLoop]: Abstraction has 23342 states and 103792 transitions. [2021-10-08 16:04:42,161 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) [2021-10-08 16:04:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 23342 states and 103792 transitions. [2021-10-08 16:04:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:04:42,163 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:42,163 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:42,188 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 [2021-10-08 16:04:42,364 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 [2021-10-08 16:04:42,364 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:42,365 INFO L82 PathProgramCache]: Analyzing trace with hash 44008527, now seen corresponding path program 3 times [2021-10-08 16:04:42,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:42,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444256813] [2021-10-08 16:04:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:42,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:42,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:42,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444256813] [2021-10-08 16:04:42,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444256813] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:42,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782155749] [2021-10-08 16:04:42,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:04:42,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:42,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:42,592 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) [2021-10-08 16:04:42,609 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 [2021-10-08 16:04:43,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:04:43,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:43,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-08 16:04:43,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:43,130 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 [2021-10-08 16:04:43,180 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-08 16:04:43,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2021-10-08 16:04:43,257 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:04:43,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 16:04:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:43,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782155749] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:43,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:43,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2021-10-08 16:04:43,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107138513] [2021-10-08 16:04:43,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 16:04:43,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:43,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 16:04:43,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:04:43,513 INFO L87 Difference]: Start difference. First operand 23342 states and 103792 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) [2021-10-08 16:04:45,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:45,520 INFO L93 Difference]: Finished difference Result 23425 states and 103940 transitions. [2021-10-08 16:04:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 16:04:45,521 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 [2021-10-08 16:04:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:45,625 INFO L225 Difference]: With dead ends: 23425 [2021-10-08 16:04:45,625 INFO L226 Difference]: Without dead ends: 23425 [2021-10-08 16:04:45,626 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1224.3ms TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 16:04:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23425 states. [2021-10-08 16:04:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23425 to 23342. [2021-10-08 16:04:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23342 states, 23194 states have (on average 4.474777959817194) internal successors, (103788), 23341 states have internal predecessors, (103788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23342 states to 23342 states and 103788 transitions. [2021-10-08 16:04:46,524 INFO L78 Accepts]: Start accepts. Automaton has 23342 states and 103788 transitions. Word has length 17 [2021-10-08 16:04:46,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:46,524 INFO L470 AbstractCegarLoop]: Abstraction has 23342 states and 103788 transitions. [2021-10-08 16:04:46,524 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) [2021-10-08 16:04:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 23342 states and 103788 transitions. [2021-10-08 16:04:46,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:04:46,527 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:46,527 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:46,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-10-08 16:04:46,727 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 [2021-10-08 16:04:46,728 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:46,729 INFO L82 PathProgramCache]: Analyzing trace with hash 44008464, now seen corresponding path program 2 times [2021-10-08 16:04:46,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:46,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674023151] [2021-10-08 16:04:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:46,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:46,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:46,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674023151] [2021-10-08 16:04:46,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674023151] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:46,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169344630] [2021-10-08 16:04:46,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:46,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:46,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:46,946 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) [2021-10-08 16:04:46,948 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 [2021-10-08 16:04:47,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:47,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:47,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-08 16:04:47,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:47,529 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 [2021-10-08 16:04:47,576 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:04:47,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 16:04:47,625 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:04:47,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:04:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:47,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169344630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:47,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:47,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-08 16:04:47,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145792940] [2021-10-08 16:04:47,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 16:04:47,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:47,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 16:04:47,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-10-08 16:04:47,760 INFO L87 Difference]: Start difference. First operand 23342 states and 103788 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) [2021-10-08 16:04:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:49,120 INFO L93 Difference]: Finished difference Result 23422 states and 103934 transitions. [2021-10-08 16:04:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:04:49,121 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 [2021-10-08 16:04:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:49,221 INFO L225 Difference]: With dead ends: 23422 [2021-10-08 16:04:49,221 INFO L226 Difference]: Without dead ends: 23422 [2021-10-08 16:04:49,222 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 934.7ms TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:04:49,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23422 states. [2021-10-08 16:04:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23422 to 23342. [2021-10-08 16:04:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23342 states, 23194 states have (on average 4.474691730619988) internal successors, (103786), 23341 states have internal predecessors, (103786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23342 states to 23342 states and 103786 transitions. [2021-10-08 16:04:50,110 INFO L78 Accepts]: Start accepts. Automaton has 23342 states and 103786 transitions. Word has length 17 [2021-10-08 16:04:50,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:50,111 INFO L470 AbstractCegarLoop]: Abstraction has 23342 states and 103786 transitions. [2021-10-08 16:04:50,111 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) [2021-10-08 16:04:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 23342 states and 103786 transitions. [2021-10-08 16:04:50,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:04:50,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:50,115 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:50,141 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 [2021-10-08 16:04:50,315 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 [2021-10-08 16:04:50,316 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:50,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:50,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1907970489, now seen corresponding path program 3 times [2021-10-08 16:04:50,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:50,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260726695] [2021-10-08 16:04:50,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:50,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:50,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:50,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260726695] [2021-10-08 16:04:50,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260726695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:50,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066727418] [2021-10-08 16:04:50,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:04:50,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:50,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:50,560 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) [2021-10-08 16:04:50,581 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 [2021-10-08 16:04:51,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:04:51,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:51,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-08 16:04:51,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:51,209 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 [2021-10-08 16:04:51,287 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-08 16:04:51,288 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 40 treesize of output 47 [2021-10-08 16:04:51,418 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:04:51,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:04:51,559 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:04:51,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:04:52,053 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:52,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066727418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:52,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:52,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2021-10-08 16:04:52,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094513444] [2021-10-08 16:04:52,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-08 16:04:52,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:52,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-08 16:04:52,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-10-08 16:04:52,055 INFO L87 Difference]: Start difference. First operand 23342 states and 103786 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) [2021-10-08 16:04:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:57,763 INFO L93 Difference]: Finished difference Result 25435 states and 109479 transitions. [2021-10-08 16:04:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-08 16:04:57,764 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 [2021-10-08 16:04:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:57,870 INFO L225 Difference]: With dead ends: 25435 [2021-10-08 16:04:57,870 INFO L226 Difference]: Without dead ends: 25435 [2021-10-08 16:04:57,871 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3356.6ms TimeCoverageRelationStatistics Valid=542, Invalid=2880, Unknown=0, NotChecked=0, Total=3422 [2021-10-08 16:04:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25435 states. [2021-10-08 16:04:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25435 to 23790. [2021-10-08 16:04:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23790 states, 23642 states have (on average 4.463243380424668) internal successors, (105520), 23789 states have internal predecessors, (105520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23790 states to 23790 states and 105520 transitions. [2021-10-08 16:04:58,793 INFO L78 Accepts]: Start accepts. Automaton has 23790 states and 105520 transitions. Word has length 18 [2021-10-08 16:04:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:58,793 INFO L470 AbstractCegarLoop]: Abstraction has 23790 states and 105520 transitions. [2021-10-08 16:04:58,793 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) [2021-10-08 16:04:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23790 states and 105520 transitions. [2021-10-08 16:04:58,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:04:58,798 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:58,798 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:58,825 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 [2021-10-08 16:04:58,998 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 [2021-10-08 16:04:58,999 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:04:59,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:59,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1907970552, now seen corresponding path program 2 times [2021-10-08 16:04:59,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:59,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259725117] [2021-10-08 16:04:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:59,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:04:59,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:59,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259725117] [2021-10-08 16:04:59,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259725117] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:59,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147633773] [2021-10-08 16:04:59,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:59,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:59,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:59,257 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) [2021-10-08 16:04:59,259 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 [2021-10-08 16:04:59,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:59,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:59,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-08 16:04:59,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:59,917 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 [2021-10-08 16:04:59,999 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-08 16:05:00,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 49 [2021-10-08 16:05:00,134 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:05:00,134 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 48 treesize of output 47 [2021-10-08 16:05:00,278 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:05:00,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:05:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:00,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147633773] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:00,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:00,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2021-10-08 16:05:00,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968129450] [2021-10-08 16:05:00,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-08 16:05:00,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:00,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-08 16:05:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-10-08 16:05:00,802 INFO L87 Difference]: Start difference. First operand 23790 states and 105520 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) [2021-10-08 16:05:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:07,544 INFO L93 Difference]: Finished difference Result 25413 states and 109309 transitions. [2021-10-08 16:05:07,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-08 16:05:07,545 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 [2021-10-08 16:05:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:07,859 INFO L225 Difference]: With dead ends: 25413 [2021-10-08 16:05:07,860 INFO L226 Difference]: Without dead ends: 25413 [2021-10-08 16:05:07,860 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3766.0ms TimeCoverageRelationStatistics Valid=542, Invalid=2880, Unknown=0, NotChecked=0, Total=3422 [2021-10-08 16:05:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25413 states. [2021-10-08 16:05:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25413 to 23790. [2021-10-08 16:05:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23790 states, 23642 states have (on average 4.457998477286186) internal successors, (105396), 23789 states have internal predecessors, (105396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23790 states to 23790 states and 105396 transitions. [2021-10-08 16:05:08,753 INFO L78 Accepts]: Start accepts. Automaton has 23790 states and 105396 transitions. Word has length 18 [2021-10-08 16:05:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:08,753 INFO L470 AbstractCegarLoop]: Abstraction has 23790 states and 105396 transitions. [2021-10-08 16:05:08,754 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) [2021-10-08 16:05:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 23790 states and 105396 transitions. [2021-10-08 16:05:08,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:05:08,760 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:08,760 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:08,789 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 [2021-10-08 16:05:08,969 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 [2021-10-08 16:05:08,970 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:08,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:08,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1441391187, now seen corresponding path program 1 times [2021-10-08 16:05:08,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:08,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070171073] [2021-10-08 16:05:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:08,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-08 16:05:09,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:09,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070171073] [2021-10-08 16:05:09,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070171073] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:09,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864008738] [2021-10-08 16:05:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:09,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:09,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:09,011 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) [2021-10-08 16:05:09,018 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 [2021-10-08 16:05:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:09,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 16:05:09,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-08 16:05:09,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864008738] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:05:09,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:05:09,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-08 16:05:09,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519201057] [2021-10-08 16:05:09,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:05:09,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:05:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:05:09,564 INFO L87 Difference]: Start difference. First operand 23790 states and 105396 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) [2021-10-08 16:05:09,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:09,827 INFO L93 Difference]: Finished difference Result 31662 states and 131982 transitions. [2021-10-08 16:05:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:05:09,828 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 [2021-10-08 16:05:09,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:09,970 INFO L225 Difference]: With dead ends: 31662 [2021-10-08 16:05:09,970 INFO L226 Difference]: Without dead ends: 31662 [2021-10-08 16:05:09,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:05:10,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31662 states. [2021-10-08 16:05:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31662 to 22976. [2021-10-08 16:05:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22976 states, 22858 states have (on average 4.35287426721498) internal successors, (99498), 22975 states have internal predecessors, (99498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:11,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22976 states to 22976 states and 99498 transitions. [2021-10-08 16:05:11,008 INFO L78 Accepts]: Start accepts. Automaton has 22976 states and 99498 transitions. Word has length 18 [2021-10-08 16:05:11,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:11,008 INFO L470 AbstractCegarLoop]: Abstraction has 22976 states and 99498 transitions. [2021-10-08 16:05:11,008 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) [2021-10-08 16:05:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 22976 states and 99498 transitions. [2021-10-08 16:05:11,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:05:11,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:11,013 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:11,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-10-08 16:05:11,214 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 [2021-10-08 16:05:11,214 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:11,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:11,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1500060624, now seen corresponding path program 1 times [2021-10-08 16:05:11,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:11,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833207913] [2021-10-08 16:05:11,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:11,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:05:11,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:11,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833207913] [2021-10-08 16:05:11,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833207913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:11,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358123363] [2021-10-08 16:05:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:11,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:11,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:11,291 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) [2021-10-08 16:05:11,316 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 [2021-10-08 16:05:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:12,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-08 16:05:12,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:05:12,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358123363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:12,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:12,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-08 16:05:12,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947702294] [2021-10-08 16:05:12,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-08 16:05:12,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-08 16:05:12,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:05:12,256 INFO L87 Difference]: Start difference. First operand 22976 states and 99498 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) [2021-10-08 16:05:12,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:12,674 INFO L93 Difference]: Finished difference Result 23440 states and 101220 transitions. [2021-10-08 16:05:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:05:12,675 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 [2021-10-08 16:05:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:12,767 INFO L225 Difference]: With dead ends: 23440 [2021-10-08 16:05:12,767 INFO L226 Difference]: Without dead ends: 22810 [2021-10-08 16:05:12,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 103.1ms TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-10-08 16:05:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22810 states. [2021-10-08 16:05:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22810 to 22790. [2021-10-08 16:05:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22790 states, 22672 states have (on average 4.348270995059986) internal successors, (98584), 22789 states have internal predecessors, (98584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:13,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22790 states to 22790 states and 98584 transitions. [2021-10-08 16:05:13,614 INFO L78 Accepts]: Start accepts. Automaton has 22790 states and 98584 transitions. Word has length 19 [2021-10-08 16:05:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:13,614 INFO L470 AbstractCegarLoop]: Abstraction has 22790 states and 98584 transitions. [2021-10-08 16:05:13,615 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) [2021-10-08 16:05:13,615 INFO L276 IsEmpty]: Start isEmpty. Operand 22790 states and 98584 transitions. [2021-10-08 16:05:13,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:05:13,619 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:13,620 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:13,645 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 [2021-10-08 16:05:13,820 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 [2021-10-08 16:05:13,820 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:13,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:13,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1192396768, now seen corresponding path program 4 times [2021-10-08 16:05:13,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:13,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039419727] [2021-10-08 16:05:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:13,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:13,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:13,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039419727] [2021-10-08 16:05:13,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039419727] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:13,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396448705] [2021-10-08 16:05:13,978 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:05:13,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:13,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:13,980 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) [2021-10-08 16:05:13,981 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 [2021-10-08 16:05:14,532 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:05:14,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:14,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-08 16:05:14,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:14,539 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 123 treesize of output 121 [2021-10-08 16:05:14,810 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:05:14,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 16:05:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:14,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396448705] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:14,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:14,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-08 16:05:14,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149699114] [2021-10-08 16:05:14,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 16:05:14,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 16:05:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:05:14,847 INFO L87 Difference]: Start difference. First operand 22790 states and 98584 transitions. Second operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 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) [2021-10-08 16:05:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:16,059 INFO L93 Difference]: Finished difference Result 26302 states and 111499 transitions. [2021-10-08 16:05:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:05:16,059 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 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 [2021-10-08 16:05:16,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:16,171 INFO L225 Difference]: With dead ends: 26302 [2021-10-08 16:05:16,171 INFO L226 Difference]: Without dead ends: 26262 [2021-10-08 16:05:16,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 308.9ms TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:05:16,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26262 states. [2021-10-08 16:05:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26262 to 22895. [2021-10-08 16:05:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22895 states, 22777 states have (on average 4.343680028098521) internal successors, (98936), 22894 states have internal predecessors, (98936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22895 states to 22895 states and 98936 transitions. [2021-10-08 16:05:17,094 INFO L78 Accepts]: Start accepts. Automaton has 22895 states and 98936 transitions. Word has length 19 [2021-10-08 16:05:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:17,094 INFO L470 AbstractCegarLoop]: Abstraction has 22895 states and 98936 transitions. [2021-10-08 16:05:17,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 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) [2021-10-08 16:05:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 22895 states and 98936 transitions. [2021-10-08 16:05:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:05:17,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:17,100 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:17,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-10-08 16:05:17,300 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 [2021-10-08 16:05:17,301 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:17,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:17,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1581543722, now seen corresponding path program 2 times [2021-10-08 16:05:17,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:17,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154574072] [2021-10-08 16:05:17,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:17,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:17,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:17,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154574072] [2021-10-08 16:05:17,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154574072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:17,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984325610] [2021-10-08 16:05:17,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:05:17,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:17,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:17,419 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) [2021-10-08 16:05:17,419 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 [2021-10-08 16:05:17,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:05:17,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:17,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-08 16:05:17,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:18,170 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:18,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984325610] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:18,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:18,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-10-08 16:05:18,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925600191] [2021-10-08 16:05:18,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-08 16:05:18,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:18,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-08 16:05:18,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-10-08 16:05:18,174 INFO L87 Difference]: Start difference. First operand 22895 states and 98936 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) [2021-10-08 16:05:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:18,982 INFO L93 Difference]: Finished difference Result 21133 states and 89499 transitions. [2021-10-08 16:05:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:05:18,982 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 [2021-10-08 16:05:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:19,065 INFO L225 Difference]: With dead ends: 21133 [2021-10-08 16:05:19,065 INFO L226 Difference]: Without dead ends: 20380 [2021-10-08 16:05:19,066 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 235.1ms TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2021-10-08 16:05:19,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20380 states. [2021-10-08 16:05:19,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20380 to 19981. [2021-10-08 16:05:19,791 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) [2021-10-08 16:05:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19981 states to 19981 states and 85316 transitions. [2021-10-08 16:05:19,871 INFO L78 Accepts]: Start accepts. Automaton has 19981 states and 85316 transitions. Word has length 19 [2021-10-08 16:05:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:19,871 INFO L470 AbstractCegarLoop]: Abstraction has 19981 states and 85316 transitions. [2021-10-08 16:05:19,871 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) [2021-10-08 16:05:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 19981 states and 85316 transitions. [2021-10-08 16:05:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:05:19,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:19,875 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:19,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2021-10-08 16:05:20,075 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 [2021-10-08 16:05:20,076 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:20,077 INFO L82 PathProgramCache]: Analyzing trace with hash -2078111464, now seen corresponding path program 5 times [2021-10-08 16:05:20,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:20,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555045118] [2021-10-08 16:05:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:20,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:20,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:20,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555045118] [2021-10-08 16:05:20,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555045118] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:20,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798028] [2021-10-08 16:05:20,355 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:05:20,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:20,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:20,356 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) [2021-10-08 16:05:20,374 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 [2021-10-08 16:05:20,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-08 16:05:20,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:20,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-08 16:05:20,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:21,564 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:05:21,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:05:21,719 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:05:21,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:05:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:21,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798028] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:21,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:21,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 23 [2021-10-08 16:05:21,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715965530] [2021-10-08 16:05:21,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-08 16:05:21,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:21,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-08 16:05:21,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-10-08 16:05:21,759 INFO L87 Difference]: Start difference. First operand 19981 states and 85316 transitions. Second operand has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 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) [2021-10-08 16:05:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:25,207 INFO L93 Difference]: Finished difference Result 25596 states and 103296 transitions. [2021-10-08 16:05:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 16:05:25,208 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 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 19 [2021-10-08 16:05:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:25,543 INFO L225 Difference]: With dead ends: 25596 [2021-10-08 16:05:25,544 INFO L226 Difference]: Without dead ends: 25223 [2021-10-08 16:05:25,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2198.3ms TimeCoverageRelationStatistics Valid=299, Invalid=1771, Unknown=0, NotChecked=0, Total=2070 [2021-10-08 16:05:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25223 states. [2021-10-08 16:05:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25223 to 17089. [2021-10-08 16:05:25,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17089 states, 16971 states have (on average 4.247657769135584) internal successors, (72087), 17088 states have internal predecessors, (72087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17089 states to 17089 states and 72087 transitions. [2021-10-08 16:05:26,006 INFO L78 Accepts]: Start accepts. Automaton has 17089 states and 72087 transitions. Word has length 19 [2021-10-08 16:05:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:26,006 INFO L470 AbstractCegarLoop]: Abstraction has 17089 states and 72087 transitions. [2021-10-08 16:05:26,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 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) [2021-10-08 16:05:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 17089 states and 72087 transitions. [2021-10-08 16:05:26,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:26,010 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:26,010 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:26,035 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 [2021-10-08 16:05:26,211 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 [2021-10-08 16:05:26,211 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:26,212 INFO L82 PathProgramCache]: Analyzing trace with hash -890179523, now seen corresponding path program 1 times [2021-10-08 16:05:26,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:26,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821611781] [2021-10-08 16:05:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:26,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:05:26,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:26,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821611781] [2021-10-08 16:05:26,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821611781] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:26,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378878032] [2021-10-08 16:05:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:26,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:26,316 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) [2021-10-08 16:05:26,317 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 [2021-10-08 16:05:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:27,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-08 16:05:27,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:27,151 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 [2021-10-08 16:05:27,218 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:05:27,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:05:27,283 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:05:27,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:05:27,380 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:05:27,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:05:27,460 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 [2021-10-08 16:05:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:05:27,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378878032] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:27,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:27,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 19 [2021-10-08 16:05:27,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341146454] [2021-10-08 16:05:27,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 16:05:27,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:27,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 16:05:27,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:05:27,483 INFO L87 Difference]: Start difference. First operand 17089 states and 72087 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) [2021-10-08 16:05:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:29,300 INFO L93 Difference]: Finished difference Result 25866 states and 109815 transitions. [2021-10-08 16:05:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 16:05:29,301 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 [2021-10-08 16:05:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:29,407 INFO L225 Difference]: With dead ends: 25866 [2021-10-08 16:05:29,407 INFO L226 Difference]: Without dead ends: 25189 [2021-10-08 16:05:29,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 958.8ms TimeCoverageRelationStatistics Valid=217, Invalid=1043, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 16:05:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25189 states. [2021-10-08 16:05:30,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25189 to 19482. [2021-10-08 16:05:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19482 states, 19364 states have (on average 4.395063003511671) internal successors, (85106), 19481 states have internal predecessors, (85106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19482 states to 19482 states and 85106 transitions. [2021-10-08 16:05:30,120 INFO L78 Accepts]: Start accepts. Automaton has 19482 states and 85106 transitions. Word has length 20 [2021-10-08 16:05:30,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:30,121 INFO L470 AbstractCegarLoop]: Abstraction has 19482 states and 85106 transitions. [2021-10-08 16:05:30,121 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) [2021-10-08 16:05:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 19482 states and 85106 transitions. [2021-10-08 16:05:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:30,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:30,124 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:30,152 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 [2021-10-08 16:05:30,325 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 [2021-10-08 16:05:30,325 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:30,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1024579569, now seen corresponding path program 1 times [2021-10-08 16:05:30,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:30,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983094174] [2021-10-08 16:05:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:30,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:05:30,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:30,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983094174] [2021-10-08 16:05:30,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983094174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:30,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106588370] [2021-10-08 16:05:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:30,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:30,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:30,554 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) [2021-10-08 16:05:30,578 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 [2021-10-08 16:05:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:31,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-08 16:05:31,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:31,242 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 [2021-10-08 16:05:31,298 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:31,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:05:31,534 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:05:31,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:05:31,574 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:05:31,575 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 [2021-10-08 16:05:31,657 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 [2021-10-08 16:05:31,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:05:31,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106588370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:31,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:31,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-10-08 16:05:31,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981825072] [2021-10-08 16:05:31,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-08 16:05:31,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:31,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-08 16:05:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:05:31,660 INFO L87 Difference]: Start difference. First operand 19482 states and 85106 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) [2021-10-08 16:05:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:32,649 INFO L93 Difference]: Finished difference Result 22102 states and 95928 transitions. [2021-10-08 16:05:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:05:32,650 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 [2021-10-08 16:05:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:32,744 INFO L225 Difference]: With dead ends: 22102 [2021-10-08 16:05:32,744 INFO L226 Difference]: Without dead ends: 22102 [2021-10-08 16:05:32,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 456.9ms TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:05:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22102 states. [2021-10-08 16:05:33,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22102 to 20304. [2021-10-08 16:05:33,381 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) [2021-10-08 16:05:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20304 states to 20304 states and 89193 transitions. [2021-10-08 16:05:33,471 INFO L78 Accepts]: Start accepts. Automaton has 20304 states and 89193 transitions. Word has length 20 [2021-10-08 16:05:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:33,472 INFO L470 AbstractCegarLoop]: Abstraction has 20304 states and 89193 transitions. [2021-10-08 16:05:33,472 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) [2021-10-08 16:05:33,472 INFO L276 IsEmpty]: Start isEmpty. Operand 20304 states and 89193 transitions. [2021-10-08 16:05:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:33,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:33,476 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:33,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-10-08 16:05:33,683 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 [2021-10-08 16:05:33,683 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:33,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1315736581, now seen corresponding path program 2 times [2021-10-08 16:05:33,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:33,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348491200] [2021-10-08 16:05:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:33,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:33,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:33,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348491200] [2021-10-08 16:05:33,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348491200] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:33,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226626964] [2021-10-08 16:05:33,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:05:33,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:33,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:33,984 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) [2021-10-08 16:05:33,985 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 [2021-10-08 16:05:34,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:05:34,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:34,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 16:05:34,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:34,754 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 [2021-10-08 16:05:34,818 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:34,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:05:34,879 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:34,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:05:34,945 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:34,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:05:35,004 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:35,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:05:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:35,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226626964] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:35,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:35,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-08 16:05:35,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661435758] [2021-10-08 16:05:35,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 16:05:35,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 16:05:35,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-10-08 16:05:35,157 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) [2021-10-08 16:05:37,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:37,057 INFO L93 Difference]: Finished difference Result 28879 states and 120326 transitions. [2021-10-08 16:05:37,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 16:05:37,058 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 [2021-10-08 16:05:37,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:37,190 INFO L225 Difference]: With dead ends: 28879 [2021-10-08 16:05:37,190 INFO L226 Difference]: Without dead ends: 28879 [2021-10-08 16:05:37,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1138.1ms TimeCoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 16:05:37,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28879 states. [2021-10-08 16:05:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28879 to 20304. [2021-10-08 16:05:37,929 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) [2021-10-08 16:05:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20304 states to 20304 states and 87897 transitions. [2021-10-08 16:05:38,014 INFO L78 Accepts]: Start accepts. Automaton has 20304 states and 87897 transitions. Word has length 20 [2021-10-08 16:05:38,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:38,014 INFO L470 AbstractCegarLoop]: Abstraction has 20304 states and 87897 transitions. [2021-10-08 16:05:38,014 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) [2021-10-08 16:05:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 20304 states and 87897 transitions. [2021-10-08 16:05:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:38,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:38,020 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:38,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-08 16:05:38,220 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 [2021-10-08 16:05:38,220 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:38,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:38,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1460857509, now seen corresponding path program 3 times [2021-10-08 16:05:38,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:38,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62505059] [2021-10-08 16:05:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:38,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:38,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:38,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62505059] [2021-10-08 16:05:38,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62505059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:38,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940973528] [2021-10-08 16:05:38,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:05:38,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:38,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:38,529 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) [2021-10-08 16:05:38,539 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 [2021-10-08 16:05:39,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:05:39,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:39,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-08 16:05:39,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:39,315 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:05:39,316 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 202 treesize of output 224 [2021-10-08 16:05:41,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:41,543 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-08 16:05:41,543 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 [2021-10-08 16:05:41,823 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 [2021-10-08 16:05:41,919 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-08 16:05:41,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2021-10-08 16:05:42,021 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:42,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2021-10-08 16:05:42,106 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:42,106 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 32 treesize of output 31 [2021-10-08 16:05:42,180 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:42,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-08 16:05:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:42,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940973528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:42,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:42,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-08 16:05:42,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941815045] [2021-10-08 16:05:42,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 16:05:42,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:42,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 16:05:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:05:42,427 INFO L87 Difference]: Start difference. First operand 20304 states and 87897 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) [2021-10-08 16:05:46,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:46,328 INFO L93 Difference]: Finished difference Result 33144 states and 142300 transitions. [2021-10-08 16:05:46,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 16:05:46,329 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 [2021-10-08 16:05:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:46,487 INFO L225 Difference]: With dead ends: 33144 [2021-10-08 16:05:46,487 INFO L226 Difference]: Without dead ends: 33144 [2021-10-08 16:05:46,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2938.5ms TimeCoverageRelationStatistics Valid=314, Invalid=1666, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 16:05:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33144 states. [2021-10-08 16:05:47,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33144 to 22700. [2021-10-08 16:05:47,189 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) [2021-10-08 16:05:47,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22700 states to 22700 states and 100407 transitions. [2021-10-08 16:05:47,289 INFO L78 Accepts]: Start accepts. Automaton has 22700 states and 100407 transitions. Word has length 20 [2021-10-08 16:05:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:47,289 INFO L470 AbstractCegarLoop]: Abstraction has 22700 states and 100407 transitions. [2021-10-08 16:05:47,289 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) [2021-10-08 16:05:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22700 states and 100407 transitions. [2021-10-08 16:05:47,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:47,293 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:47,293 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:47,323 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 [2021-10-08 16:05:47,494 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 [2021-10-08 16:05:47,494 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:47,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:47,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1460857574, now seen corresponding path program 3 times [2021-10-08 16:05:47,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:47,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471830467] [2021-10-08 16:05:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:47,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:47,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:47,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471830467] [2021-10-08 16:05:47,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471830467] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:47,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151689549] [2021-10-08 16:05:47,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:05:47,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:47,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:47,799 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) [2021-10-08 16:05:47,830 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 [2021-10-08 16:05:48,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:05:48,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:48,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-08 16:05:48,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:48,657 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:05:48,657 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 [2021-10-08 16:05:51,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:51,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:51,199 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-08 16:05:51,200 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 [2021-10-08 16:05:51,501 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 [2021-10-08 16:05:51,575 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-08 16:05:51,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 35 [2021-10-08 16:05:51,681 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:51,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-08 16:05:51,770 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:51,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:05:51,834 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:05:51,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-08 16:05:52,064 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:52,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151689549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:52,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:52,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-08 16:05:52,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727941063] [2021-10-08 16:05:52,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 16:05:52,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:52,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 16:05:52,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:05:52,067 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) [2021-10-08 16:05:55,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:55,906 INFO L93 Difference]: Finished difference Result 31946 states and 137243 transitions. [2021-10-08 16:05:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 16:05:55,906 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 [2021-10-08 16:05:55,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:56,051 INFO L225 Difference]: With dead ends: 31946 [2021-10-08 16:05:56,052 INFO L226 Difference]: Without dead ends: 31946 [2021-10-08 16:05:56,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2879.1ms TimeCoverageRelationStatistics Valid=314, Invalid=1666, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 16:05:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31946 states. [2021-10-08 16:05:56,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31946 to 22700. [2021-10-08 16:05:56,784 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) [2021-10-08 16:05:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22700 states to 22700 states and 99209 transitions. [2021-10-08 16:05:56,886 INFO L78 Accepts]: Start accepts. Automaton has 22700 states and 99209 transitions. Word has length 20 [2021-10-08 16:05:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:56,887 INFO L470 AbstractCegarLoop]: Abstraction has 22700 states and 99209 transitions. [2021-10-08 16:05:56,887 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) [2021-10-08 16:05:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 22700 states and 99209 transitions. [2021-10-08 16:05:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:56,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:56,891 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:56,920 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 [2021-10-08 16:05:57,095 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 [2021-10-08 16:05:57,096 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:05:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:57,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2097550641, now seen corresponding path program 4 times [2021-10-08 16:05:57,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:57,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294110017] [2021-10-08 16:05:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:57,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:57,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:57,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294110017] [2021-10-08 16:05:57,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294110017] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:57,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105533669] [2021-10-08 16:05:57,566 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:05:57,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:57,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:57,567 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) [2021-10-08 16:05:57,571 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 [2021-10-08 16:05:58,228 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:05:58,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:58,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-08 16:05:58,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:58,493 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:05:58,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:05:58,630 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:05:58,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105533669] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:58,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:05:58,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2021-10-08 16:05:58,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872408387] [2021-10-08 16:05:58,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 16:05:58,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:05:58,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 16:05:58,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:05:58,632 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) [2021-10-08 16:06:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:00,026 INFO L93 Difference]: Finished difference Result 42085 states and 183341 transitions. [2021-10-08 16:06:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:06:00,026 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 [2021-10-08 16:06:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:00,590 INFO L225 Difference]: With dead ends: 42085 [2021-10-08 16:06:00,590 INFO L226 Difference]: Without dead ends: 41995 [2021-10-08 16:06:00,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 593.4ms TimeCoverageRelationStatistics Valid=246, Invalid=1086, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 16:06:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41995 states. [2021-10-08 16:06:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41995 to 35507. [2021-10-08 16:06:01,630 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) [2021-10-08 16:06:01,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35507 states to 35507 states and 159773 transitions. [2021-10-08 16:06:01,800 INFO L78 Accepts]: Start accepts. Automaton has 35507 states and 159773 transitions. Word has length 20 [2021-10-08 16:06:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:01,800 INFO L470 AbstractCegarLoop]: Abstraction has 35507 states and 159773 transitions. [2021-10-08 16:06:01,801 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) [2021-10-08 16:06:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 35507 states and 159773 transitions. [2021-10-08 16:06:01,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:06:01,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:01,806 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:01,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-08 16:06:02,006 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 [2021-10-08 16:06:02,007 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:02,008 INFO L82 PathProgramCache]: Analyzing trace with hash -778123765, now seen corresponding path program 4 times [2021-10-08 16:06:02,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:02,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319126214] [2021-10-08 16:06:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:02,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:02,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:02,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319126214] [2021-10-08 16:06:02,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319126214] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:02,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544702196] [2021-10-08 16:06:02,266 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:06:02,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:02,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:02,267 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) [2021-10-08 16:06:02,268 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 [2021-10-08 16:06:03,001 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:06:03,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:03,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 16:06:03,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:03,120 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 [2021-10-08 16:06:03,173 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:03,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:03,221 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:03,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:03,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544702196] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:03,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:03,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-08 16:06:03,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783594068] [2021-10-08 16:06:03,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 16:06:03,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 16:06:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2021-10-08 16:06:03,766 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) [2021-10-08 16:06:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:05,277 INFO L93 Difference]: Finished difference Result 35609 states and 159974 transitions. [2021-10-08 16:06:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:06:05,278 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 [2021-10-08 16:06:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:05,445 INFO L225 Difference]: With dead ends: 35609 [2021-10-08 16:06:05,446 INFO L226 Difference]: Without dead ends: 35609 [2021-10-08 16:06:05,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 838.6ms TimeCoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 16:06:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35609 states. [2021-10-08 16:06:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35609 to 35509. [2021-10-08 16:06:06,929 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) [2021-10-08 16:06:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35509 states to 35509 states and 159779 transitions. [2021-10-08 16:06:07,094 INFO L78 Accepts]: Start accepts. Automaton has 35509 states and 159779 transitions. Word has length 20 [2021-10-08 16:06:07,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:07,094 INFO L470 AbstractCegarLoop]: Abstraction has 35509 states and 159779 transitions. [2021-10-08 16:06:07,094 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) [2021-10-08 16:06:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 35509 states and 159779 transitions. [2021-10-08 16:06:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:06:07,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:07,100 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:07,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-10-08 16:06:07,300 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 [2021-10-08 16:06:07,301 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:07,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:07,302 INFO L82 PathProgramCache]: Analyzing trace with hash -778123828, now seen corresponding path program 3 times [2021-10-08 16:06:07,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:07,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609260258] [2021-10-08 16:06:07,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:07,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:07,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:07,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609260258] [2021-10-08 16:06:07,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609260258] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:07,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572979891] [2021-10-08 16:06:07,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:06:07,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:07,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:07,557 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) [2021-10-08 16:06:07,577 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 [2021-10-08 16:06:08,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-08 16:06:08,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:08,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-08 16:06:08,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:08,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-08 16:06:08,655 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-08 16:06:08,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:08,784 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:06:08,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:06:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:09,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572979891] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:09,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:09,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2021-10-08 16:06:09,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314538384] [2021-10-08 16:06:09,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 16:06:09,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 16:06:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:06:09,465 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) [2021-10-08 16:06:14,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:14,896 INFO L93 Difference]: Finished difference Result 35699 states and 160152 transitions. [2021-10-08 16:06:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-08 16:06:14,897 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 [2021-10-08 16:06:14,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:15,079 INFO L225 Difference]: With dead ends: 35699 [2021-10-08 16:06:15,080 INFO L226 Difference]: Without dead ends: 35699 [2021-10-08 16:06:15,080 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 3997.2ms TimeCoverageRelationStatistics Valid=635, Invalid=4057, Unknown=0, NotChecked=0, Total=4692 [2021-10-08 16:06:15,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35699 states. [2021-10-08 16:06:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35699 to 35537. [2021-10-08 16:06:16,083 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) [2021-10-08 16:06:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35537 states to 35537 states and 159845 transitions. [2021-10-08 16:06:16,255 INFO L78 Accepts]: Start accepts. Automaton has 35537 states and 159845 transitions. Word has length 20 [2021-10-08 16:06:16,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:16,256 INFO L470 AbstractCegarLoop]: Abstraction has 35537 states and 159845 transitions. [2021-10-08 16:06:16,256 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) [2021-10-08 16:06:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 35537 states and 159845 transitions. [2021-10-08 16:06:16,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 16:06:16,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:16,262 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:16,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-10-08 16:06:16,462 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 [2021-10-08 16:06:16,463 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:16,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:16,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1844617328, now seen corresponding path program 1 times [2021-10-08 16:06:16,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:16,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872038555] [2021-10-08 16:06:16,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:16,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:06:17,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:17,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872038555] [2021-10-08 16:06:17,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872038555] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:17,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992044706] [2021-10-08 16:06:17,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:17,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:17,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:17,181 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) [2021-10-08 16:06:17,209 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 [2021-10-08 16:06:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:17,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 16:06:17,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:18,017 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 [2021-10-08 16:06:18,079 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:18,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:06:18,139 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:06:18,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:18,205 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:06:18,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:06:18,318 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:06:18,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:18,384 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 [2021-10-08 16:06:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:06:18,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992044706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:18,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:18,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-08 16:06:18,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322494179] [2021-10-08 16:06:18,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 16:06:18,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:18,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 16:06:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-10-08 16:06:18,388 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) [2021-10-08 16:06:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:19,682 INFO L93 Difference]: Finished difference Result 44377 states and 194890 transitions. [2021-10-08 16:06:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 16:06:19,682 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 [2021-10-08 16:06:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:20,551 INFO L225 Difference]: With dead ends: 44377 [2021-10-08 16:06:20,552 INFO L226 Difference]: Without dead ends: 44377 [2021-10-08 16:06:20,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 631.4ms TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:06:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44377 states. [2021-10-08 16:06:22,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44377 to 34026. [2021-10-08 16:06:22,101 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) [2021-10-08 16:06:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34026 states to 34026 states and 150487 transitions. [2021-10-08 16:06:22,260 INFO L78 Accepts]: Start accepts. Automaton has 34026 states and 150487 transitions. Word has length 21 [2021-10-08 16:06:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:22,260 INFO L470 AbstractCegarLoop]: Abstraction has 34026 states and 150487 transitions. [2021-10-08 16:06:22,260 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) [2021-10-08 16:06:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 34026 states and 150487 transitions. [2021-10-08 16:06:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 16:06:22,268 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:22,268 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:22,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-10-08 16:06:22,468 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 [2021-10-08 16:06:22,469 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:22,473 INFO L82 PathProgramCache]: Analyzing trace with hash 945133067, now seen corresponding path program 5 times [2021-10-08 16:06:22,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:22,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188332854] [2021-10-08 16:06:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:22,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:22,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:22,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188332854] [2021-10-08 16:06:22,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188332854] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:22,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147631509] [2021-10-08 16:06:22,804 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:06:22,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:22,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:22,807 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) [2021-10-08 16:06:22,827 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 [2021-10-08 16:06:23,572 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-08 16:06:23,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:23,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-08 16:06:23,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:24,113 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 [2021-10-08 16:06:24,191 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:24,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:24,242 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:24,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:06:24,295 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:24,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:24,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147631509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:24,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:24,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2021-10-08 16:06:24,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545438858] [2021-10-08 16:06:24,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 16:06:24,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 16:06:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:06:24,493 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) [2021-10-08 16:06:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:26,523 INFO L93 Difference]: Finished difference Result 34478 states and 151869 transitions. [2021-10-08 16:06:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:06:26,524 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 [2021-10-08 16:06:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:26,682 INFO L225 Difference]: With dead ends: 34478 [2021-10-08 16:06:26,682 INFO L226 Difference]: Without dead ends: 34478 [2021-10-08 16:06:26,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1191.8ms TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 16:06:27,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34478 states. [2021-10-08 16:06:27,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34478 to 34076. [2021-10-08 16:06:28,024 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) [2021-10-08 16:06:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34076 states to 34076 states and 150689 transitions. [2021-10-08 16:06:28,171 INFO L78 Accepts]: Start accepts. Automaton has 34076 states and 150689 transitions. Word has length 21 [2021-10-08 16:06:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:28,172 INFO L470 AbstractCegarLoop]: Abstraction has 34076 states and 150689 transitions. [2021-10-08 16:06:28,172 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) [2021-10-08 16:06:28,172 INFO L276 IsEmpty]: Start isEmpty. Operand 34076 states and 150689 transitions. [2021-10-08 16:06:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 16:06:28,181 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:28,181 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:28,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-08 16:06:28,388 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 [2021-10-08 16:06:28,389 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:28,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:28,390 INFO L82 PathProgramCache]: Analyzing trace with hash 945133004, now seen corresponding path program 3 times [2021-10-08 16:06:28,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:28,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651013528] [2021-10-08 16:06:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:28,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:28,699 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:28,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:28,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651013528] [2021-10-08 16:06:28,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651013528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:28,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830581581] [2021-10-08 16:06:28,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:06:28,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:28,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:28,703 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) [2021-10-08 16:06:28,708 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 [2021-10-08 16:06:29,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-08 16:06:29,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:29,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-08 16:06:29,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:29,840 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 [2021-10-08 16:06:29,925 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-10-08 16:06:29,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 49 [2021-10-08 16:06:30,064 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:06:30,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:06:30,194 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:06:30,195 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 45 treesize of output 44 [2021-10-08 16:06:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:31,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830581581] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:31,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:31,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2021-10-08 16:06:31,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597669997] [2021-10-08 16:06:31,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 16:06:31,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:31,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 16:06:31,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2021-10-08 16:06:31,151 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) [2021-10-08 16:06:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:39,764 INFO L93 Difference]: Finished difference Result 40204 states and 170673 transitions. [2021-10-08 16:06:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-08 16:06:39,764 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 [2021-10-08 16:06:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:39,963 INFO L225 Difference]: With dead ends: 40204 [2021-10-08 16:06:39,963 INFO L226 Difference]: Without dead ends: 40204 [2021-10-08 16:06:39,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 5038.6ms TimeCoverageRelationStatistics Valid=690, Invalid=4280, Unknown=0, NotChecked=0, Total=4970 [2021-10-08 16:06:40,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40204 states. [2021-10-08 16:06:41,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40204 to 34611. [2021-10-08 16:06:41,292 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) [2021-10-08 16:06:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34611 states to 34611 states and 152655 transitions. [2021-10-08 16:06:41,455 INFO L78 Accepts]: Start accepts. Automaton has 34611 states and 152655 transitions. Word has length 21 [2021-10-08 16:06:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:41,455 INFO L470 AbstractCegarLoop]: Abstraction has 34611 states and 152655 transitions. [2021-10-08 16:06:41,455 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) [2021-10-08 16:06:41,456 INFO L276 IsEmpty]: Start isEmpty. Operand 34611 states and 152655 transitions. [2021-10-08 16:06:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 16:06:41,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:41,466 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:41,492 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 [2021-10-08 16:06:41,671 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 [2021-10-08 16:06:41,672 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:41,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:41,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1154049764, now seen corresponding path program 6 times [2021-10-08 16:06:41,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:41,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467148029] [2021-10-08 16:06:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:41,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:41,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:41,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467148029] [2021-10-08 16:06:41,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467148029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:41,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406510531] [2021-10-08 16:06:41,862 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 16:06:41,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:41,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:41,864 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) [2021-10-08 16:06:41,871 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 [2021-10-08 16:06:42,682 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-08 16:06:42,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:42,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-08 16:06:42,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:42,826 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:06:42,827 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 [2021-10-08 16:06:45,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:45,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:45,144 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-08 16:06:45,144 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 [2021-10-08 16:06:45,418 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 [2021-10-08 16:06:45,478 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:45,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:06:45,532 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:45,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:06:45,769 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:06:45,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-08 16:06:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:45,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406510531] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:45,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:45,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-08 16:06:45,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962004362] [2021-10-08 16:06:45,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 16:06:45,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:45,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 16:06:45,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:06:45,806 INFO L87 Difference]: Start difference. First operand 34611 states and 152655 transitions. Second operand has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 26 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) [2021-10-08 16:06:50,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:50,750 INFO L93 Difference]: Finished difference Result 66392 states and 272742 transitions. [2021-10-08 16:06:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-08 16:06:50,750 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 26 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 [2021-10-08 16:06:50,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:51,423 INFO L225 Difference]: With dead ends: 66392 [2021-10-08 16:06:51,424 INFO L226 Difference]: Without dead ends: 66336 [2021-10-08 16:06:51,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2346.8ms TimeCoverageRelationStatistics Valid=389, Invalid=2581, Unknown=0, NotChecked=0, Total=2970 [2021-10-08 16:06:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66336 states. [2021-10-08 16:06:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66336 to 36925. [2021-10-08 16:06:52,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36925 states, 36807 states have (on average 4.430135572037927) internal successors, (163060), 36924 states have internal predecessors, (163060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:06:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36925 states to 36925 states and 163060 transitions. [2021-10-08 16:06:53,396 INFO L78 Accepts]: Start accepts. Automaton has 36925 states and 163060 transitions. Word has length 22 [2021-10-08 16:06:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:53,396 INFO L470 AbstractCegarLoop]: Abstraction has 36925 states and 163060 transitions. [2021-10-08 16:06:53,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 26 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) [2021-10-08 16:06:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 36925 states and 163060 transitions. [2021-10-08 16:06:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 16:06:53,409 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:53,409 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:53,449 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 [2021-10-08 16:06:53,623 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 [2021-10-08 16:06:53,623 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:53,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:53,624 INFO L82 PathProgramCache]: Analyzing trace with hash -570127002, now seen corresponding path program 4 times [2021-10-08 16:06:53,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:53,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785040997] [2021-10-08 16:06:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:53,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:53,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:53,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785040997] [2021-10-08 16:06:53,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785040997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:53,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156774191] [2021-10-08 16:06:53,741 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:06:53,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:53,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:53,742 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) [2021-10-08 16:06:53,766 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 [2021-10-08 16:06:54,661 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:06:54,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:54,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-08 16:06:54,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:54,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156774191] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:54,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:54,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-10-08 16:06:54,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136013511] [2021-10-08 16:06:54,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 16:06:54,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 16:06:54,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-10-08 16:06:54,880 INFO L87 Difference]: Start difference. First operand 36925 states and 163060 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) [2021-10-08 16:06:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:55,772 INFO L93 Difference]: Finished difference Result 35935 states and 154673 transitions. [2021-10-08 16:06:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 16:06:55,772 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 [2021-10-08 16:06:55,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:56,483 INFO L225 Difference]: With dead ends: 35935 [2021-10-08 16:06:56,483 INFO L226 Difference]: Without dead ends: 34792 [2021-10-08 16:06:56,484 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 280.8ms TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:06:56,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34792 states. [2021-10-08 16:06:57,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34792 to 34259. [2021-10-08 16:06:57,476 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) [2021-10-08 16:06:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34259 states to 34259 states and 148328 transitions. [2021-10-08 16:06:57,628 INFO L78 Accepts]: Start accepts. Automaton has 34259 states and 148328 transitions. Word has length 22 [2021-10-08 16:06:57,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:57,628 INFO L470 AbstractCegarLoop]: Abstraction has 34259 states and 148328 transitions. [2021-10-08 16:06:57,628 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) [2021-10-08 16:06:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 34259 states and 148328 transitions. [2021-10-08 16:06:57,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 16:06:57,638 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:57,638 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:57,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-08 16:06:57,839 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 [2021-10-08 16:06:57,839 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:06:57,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:57,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1405164053, now seen corresponding path program 3 times [2021-10-08 16:06:57,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:57,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318578470] [2021-10-08 16:06:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:57,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:06:58,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:58,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318578470] [2021-10-08 16:06:58,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318578470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:58,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725139548] [2021-10-08 16:06:58,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:06:58,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:58,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:58,190 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) [2021-10-08 16:06:58,191 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 [2021-10-08 16:06:59,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-08 16:06:59,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:06:59,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-08 16:06:59,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:59,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:59,177 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 69 treesize of output 67 [2021-10-08 16:06:59,548 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:06:59,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:06:59,762 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:06:59,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:07:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:00,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725139548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:00,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:00,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 27 [2021-10-08 16:07:00,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607478447] [2021-10-08 16:07:00,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 16:07:00,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 16:07:00,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2021-10-08 16:07:00,143 INFO L87 Difference]: Start difference. First operand 34259 states and 148328 transitions. Second operand has 28 states, 28 states have (on average 1.5714285714285714) 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) [2021-10-08 16:07:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:05,318 INFO L93 Difference]: Finished difference Result 44993 states and 184236 transitions. [2021-10-08 16:07:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-08 16:07:05,319 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.5714285714285714) 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 [2021-10-08 16:07:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:05,531 INFO L225 Difference]: With dead ends: 44993 [2021-10-08 16:07:05,532 INFO L226 Difference]: Without dead ends: 44360 [2021-10-08 16:07:05,532 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2866.3ms TimeCoverageRelationStatistics Valid=390, Invalid=2690, Unknown=0, NotChecked=0, Total=3080 [2021-10-08 16:07:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44360 states. [2021-10-08 16:07:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44360 to 28267. [2021-10-08 16:07:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28267 states, 28149 states have (on average 4.286226864187005) internal successors, (120653), 28266 states have internal predecessors, (120653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28267 states to 28267 states and 120653 transitions. [2021-10-08 16:07:06,605 INFO L78 Accepts]: Start accepts. Automaton has 28267 states and 120653 transitions. Word has length 22 [2021-10-08 16:07:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:06,605 INFO L470 AbstractCegarLoop]: Abstraction has 28267 states and 120653 transitions. [2021-10-08 16:07:06,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.5714285714285714) 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) [2021-10-08 16:07:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 28267 states and 120653 transitions. [2021-10-08 16:07:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 16:07:06,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:06,612 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:06,638 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 [2021-10-08 16:07:06,812 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 [2021-10-08 16:07:06,814 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:06,814 INFO L82 PathProgramCache]: Analyzing trace with hash -452587765, now seen corresponding path program 5 times [2021-10-08 16:07:06,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:06,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22634625] [2021-10-08 16:07:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:06,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:06,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:06,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22634625] [2021-10-08 16:07:06,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22634625] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:06,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734167440] [2021-10-08 16:07:06,965 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:07:06,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:06,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:06,967 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) [2021-10-08 16:07:06,978 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 [2021-10-08 16:07:08,104 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-08 16:07:08,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:08,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-08 16:07:08,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:08,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734167440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:08,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:08,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-10-08 16:07:08,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390861532] [2021-10-08 16:07:08,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-08 16:07:08,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:08,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-08 16:07:08,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2021-10-08 16:07:08,401 INFO L87 Difference]: Start difference. First operand 28267 states and 120653 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) [2021-10-08 16:07:09,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:09,790 INFO L93 Difference]: Finished difference Result 51366 states and 217655 transitions. [2021-10-08 16:07:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-08 16:07:09,790 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 [2021-10-08 16:07:09,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:10,454 INFO L225 Difference]: With dead ends: 51366 [2021-10-08 16:07:10,454 INFO L226 Difference]: Without dead ends: 51256 [2021-10-08 16:07:10,454 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 472.0ms TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 16:07:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51256 states. [2021-10-08 16:07:11,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51256 to 42128. [2021-10-08 16:07:11,612 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) [2021-10-08 16:07:11,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42128 states to 42128 states and 183263 transitions. [2021-10-08 16:07:11,799 INFO L78 Accepts]: Start accepts. Automaton has 42128 states and 183263 transitions. Word has length 22 [2021-10-08 16:07:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:11,799 INFO L470 AbstractCegarLoop]: Abstraction has 42128 states and 183263 transitions. [2021-10-08 16:07:11,799 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) [2021-10-08 16:07:11,800 INFO L276 IsEmpty]: Start isEmpty. Operand 42128 states and 183263 transitions. [2021-10-08 16:07:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 16:07:11,809 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:11,809 INFO L512 BasicCegarLoop]: trace histogram [5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:11,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-10-08 16:07:12,009 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 [2021-10-08 16:07:12,011 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:12,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1043535318, now seen corresponding path program 5 times [2021-10-08 16:07:12,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:12,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534338258] [2021-10-08 16:07:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:12,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:12,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:12,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534338258] [2021-10-08 16:07:12,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534338258] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:12,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473890946] [2021-10-08 16:07:12,914 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:07:12,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:12,915 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) [2021-10-08 16:07:12,933 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 [2021-10-08 16:07:13,768 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-08 16:07:13,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:13,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 16:07:13,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:13,972 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 [2021-10-08 16:07:14,044 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:14,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 16:07:14,116 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:14,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:07:14,185 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:14,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:07:14,246 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:14,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:07:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:14,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473890946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:14,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:14,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-08 16:07:14,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496583982] [2021-10-08 16:07:14,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:07:14,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:14,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:07:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:07:14,468 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) [2021-10-08 16:07:17,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:17,734 INFO L93 Difference]: Finished difference Result 68578 states and 295734 transitions. [2021-10-08 16:07:17,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:07:17,734 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 [2021-10-08 16:07:17,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:18,065 INFO L225 Difference]: With dead ends: 68578 [2021-10-08 16:07:18,065 INFO L226 Difference]: Without dead ends: 68578 [2021-10-08 16:07:18,066 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1576.9ms TimeCoverageRelationStatistics Valid=199, Invalid=1361, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 16:07:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68578 states. [2021-10-08 16:07:19,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68578 to 46512. [2021-10-08 16:07:19,881 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) [2021-10-08 16:07:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46512 states to 46512 states and 205989 transitions. [2021-10-08 16:07:20,590 INFO L78 Accepts]: Start accepts. Automaton has 46512 states and 205989 transitions. Word has length 23 [2021-10-08 16:07:20,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:20,591 INFO L470 AbstractCegarLoop]: Abstraction has 46512 states and 205989 transitions. [2021-10-08 16:07:20,591 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) [2021-10-08 16:07:20,592 INFO L276 IsEmpty]: Start isEmpty. Operand 46512 states and 205989 transitions. [2021-10-08 16:07:20,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 16:07:20,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:20,605 INFO L512 BasicCegarLoop]: trace histogram [5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:20,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-10-08 16:07:20,818 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 [2021-10-08 16:07:20,819 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:20,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1043535253, now seen corresponding path program 4 times [2021-10-08 16:07:20,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:20,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173317389] [2021-10-08 16:07:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:20,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:21,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:21,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173317389] [2021-10-08 16:07:21,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173317389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:21,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931377104] [2021-10-08 16:07:21,168 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:07:21,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:21,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:21,169 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) [2021-10-08 16:07:21,193 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 [2021-10-08 16:07:22,023 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:07:22,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:22,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 16:07:22,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:22,224 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 [2021-10-08 16:07:22,295 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:22,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:07:22,361 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:22,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:07:22,429 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:22,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:07:22,490 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:22,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:07:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:22,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931377104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:22,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:22,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-08 16:07:22,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796540940] [2021-10-08 16:07:22,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:07:22,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:22,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:07:22,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:07:22,716 INFO L87 Difference]: Start difference. First operand 46512 states and 205989 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) [2021-10-08 16:07:25,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:25,878 INFO L93 Difference]: Finished difference Result 66386 states and 286563 transitions. [2021-10-08 16:07:25,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:07:25,878 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 [2021-10-08 16:07:25,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:26,700 INFO L225 Difference]: With dead ends: 66386 [2021-10-08 16:07:26,700 INFO L226 Difference]: Without dead ends: 66386 [2021-10-08 16:07:26,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1496.9ms TimeCoverageRelationStatistics Valid=199, Invalid=1361, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 16:07:26,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66386 states. [2021-10-08 16:07:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66386 to 46512. [2021-10-08 16:07:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46512 states, 46394 states have (on average 4.392744751476484) internal successors, (203797), 46511 states have internal predecessors, (203797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46512 states to 46512 states and 203797 transitions. [2021-10-08 16:07:28,949 INFO L78 Accepts]: Start accepts. Automaton has 46512 states and 203797 transitions. Word has length 23 [2021-10-08 16:07:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:28,950 INFO L470 AbstractCegarLoop]: Abstraction has 46512 states and 203797 transitions. [2021-10-08 16:07:28,950 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) [2021-10-08 16:07:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 46512 states and 203797 transitions. [2021-10-08 16:07:28,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 16:07:28,963 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:28,963 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:28,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-10-08 16:07:29,163 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 [2021-10-08 16:07:29,164 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:29,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:29,164 INFO L82 PathProgramCache]: Analyzing trace with hash 933136756, now seen corresponding path program 1 times [2021-10-08 16:07:29,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:29,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391266849] [2021-10-08 16:07:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:29,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-08 16:07:29,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:29,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391266849] [2021-10-08 16:07:29,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391266849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:29,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214054618] [2021-10-08 16:07:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:29,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:29,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:29,226 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) [2021-10-08 16:07:29,257 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 [2021-10-08 16:07:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:30,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-08 16:07:30,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-08 16:07:30,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214054618] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:30,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:30,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-08 16:07:30,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922444290] [2021-10-08 16:07:30,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:07:30,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:07:30,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:07:30,214 INFO L87 Difference]: Start difference. First operand 46512 states and 203797 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) [2021-10-08 16:07:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:31,493 INFO L93 Difference]: Finished difference Result 76156 states and 327949 transitions. [2021-10-08 16:07:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:07:31,494 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 [2021-10-08 16:07:31,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:31,959 INFO L225 Difference]: With dead ends: 76156 [2021-10-08 16:07:31,959 INFO L226 Difference]: Without dead ends: 76156 [2021-10-08 16:07:31,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:07:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76156 states. [2021-10-08 16:07:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76156 to 48807. [2021-10-08 16:07:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48807 states, 48689 states have (on average 4.431925075479061) internal successors, (215786), 48806 states have internal predecessors, (215786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48807 states to 48807 states and 215786 transitions. [2021-10-08 16:07:34,720 INFO L78 Accepts]: Start accepts. Automaton has 48807 states and 215786 transitions. Word has length 23 [2021-10-08 16:07:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:34,720 INFO L470 AbstractCegarLoop]: Abstraction has 48807 states and 215786 transitions. [2021-10-08 16:07:34,721 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) [2021-10-08 16:07:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 48807 states and 215786 transitions. [2021-10-08 16:07:34,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 16:07:34,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:34,732 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:34,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-10-08 16:07:34,932 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 [2021-10-08 16:07:34,934 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:34,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:34,935 INFO L82 PathProgramCache]: Analyzing trace with hash 933136757, now seen corresponding path program 6 times [2021-10-08 16:07:34,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:34,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94767431] [2021-10-08 16:07:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:34,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:35,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:35,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94767431] [2021-10-08 16:07:35,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94767431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:35,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189524897] [2021-10-08 16:07:35,255 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 16:07:35,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:35,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:35,257 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) [2021-10-08 16:07:35,259 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 [2021-10-08 16:07:36,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-08 16:07:36,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:36,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-08 16:07:36,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:36,575 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:07:36,575 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 28 treesize of output 27 [2021-10-08 16:07:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:36,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189524897] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:36,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:36,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2021-10-08 16:07:36,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594734226] [2021-10-08 16:07:36,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:07:36,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:07:36,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:07:36,798 INFO L87 Difference]: Start difference. First operand 48807 states and 215786 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) [2021-10-08 16:07:43,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:43,958 INFO L93 Difference]: Finished difference Result 58914 states and 253210 transitions. [2021-10-08 16:07:43,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-08 16:07:43,959 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 [2021-10-08 16:07:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:44,502 INFO L225 Difference]: With dead ends: 58914 [2021-10-08 16:07:44,502 INFO L226 Difference]: Without dead ends: 58914 [2021-10-08 16:07:44,503 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 3833.6ms TimeCoverageRelationStatistics Valid=706, Invalid=4844, Unknown=0, NotChecked=0, Total=5550 [2021-10-08 16:07:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58914 states. [2021-10-08 16:07:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58914 to 48607. [2021-10-08 16:07:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48607 states, 48489 states have (on average 4.433397265359154) internal successors, (214971), 48606 states have internal predecessors, (214971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48607 states to 48607 states and 214971 transitions. [2021-10-08 16:07:47,107 INFO L78 Accepts]: Start accepts. Automaton has 48607 states and 214971 transitions. Word has length 23 [2021-10-08 16:07:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:47,107 INFO L470 AbstractCegarLoop]: Abstraction has 48607 states and 214971 transitions. [2021-10-08 16:07:47,107 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) [2021-10-08 16:07:47,107 INFO L276 IsEmpty]: Start isEmpty. Operand 48607 states and 214971 transitions. [2021-10-08 16:07:47,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 16:07:47,117 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:47,117 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:47,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-10-08 16:07:47,317 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 [2021-10-08 16:07:47,318 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:47,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:47,319 INFO L82 PathProgramCache]: Analyzing trace with hash -925996144, now seen corresponding path program 4 times [2021-10-08 16:07:47,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:47,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363971402] [2021-10-08 16:07:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:47,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:47,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:47,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363971402] [2021-10-08 16:07:47,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363971402] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:47,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124235661] [2021-10-08 16:07:47,656 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:07:47,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:47,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:47,657 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) [2021-10-08 16:07:47,658 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 [2021-10-08 16:07:48,593 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:07:48,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:48,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-08 16:07:48,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:48,758 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 19 treesize of output 15 [2021-10-08 16:07:48,809 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:48,809 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 30 treesize of output 29 [2021-10-08 16:07:48,867 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:07:48,868 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 [2021-10-08 16:07:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:07:49,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124235661] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:49,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:49,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-10-08 16:07:49,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702044993] [2021-10-08 16:07:49,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:07:49,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:49,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:07:49,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:07:49,563 INFO L87 Difference]: Start difference. First operand 48607 states and 214971 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) [2021-10-08 16:07:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:51,643 INFO L93 Difference]: Finished difference Result 48779 states and 215301 transitions. [2021-10-08 16:07:51,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 16:07:51,643 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 [2021-10-08 16:07:51,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:52,424 INFO L225 Difference]: With dead ends: 48779 [2021-10-08 16:07:52,424 INFO L226 Difference]: Without dead ends: 48779 [2021-10-08 16:07:52,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1579.8ms TimeCoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 16:07:52,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48779 states. [2021-10-08 16:07:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48779 to 48607. [2021-10-08 16:07:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48607 states, 48489 states have (on average 4.4333560188908825) internal successors, (214969), 48606 states have internal predecessors, (214969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48607 states to 48607 states and 214969 transitions. [2021-10-08 16:07:54,626 INFO L78 Accepts]: Start accepts. Automaton has 48607 states and 214969 transitions. Word has length 23 [2021-10-08 16:07:54,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:54,627 INFO L470 AbstractCegarLoop]: Abstraction has 48607 states and 214969 transitions. [2021-10-08 16:07:54,627 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) [2021-10-08 16:07:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 48607 states and 214969 transitions. [2021-10-08 16:07:54,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-08 16:07:54,641 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:54,641 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:54,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2021-10-08 16:07:54,858 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 [2021-10-08 16:07:54,858 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:07:54,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:54,859 INFO L82 PathProgramCache]: Analyzing trace with hash -749380684, now seen corresponding path program 2 times [2021-10-08 16:07:54,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:54,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943303811] [2021-10-08 16:07:54,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:54,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:07:54,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:54,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943303811] [2021-10-08 16:07:54,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943303811] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:54,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497843488] [2021-10-08 16:07:54,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:07:54,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:54,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:54,963 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) [2021-10-08 16:07:54,964 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 [2021-10-08 16:07:55,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:07:55,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:55,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-08 16:07:55,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:07:56,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497843488] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:56,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:56,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2021-10-08 16:07:56,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819264222] [2021-10-08 16:07:56,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-08 16:07:56,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:56,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-08 16:07:56,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-10-08 16:07:56,118 INFO L87 Difference]: Start difference. First operand 48607 states and 214969 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) [2021-10-08 16:07:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:57,425 INFO L93 Difference]: Finished difference Result 49991 states and 220531 transitions. [2021-10-08 16:07:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 16:07:57,425 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 [2021-10-08 16:07:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:57,774 INFO L225 Difference]: With dead ends: 49991 [2021-10-08 16:07:57,774 INFO L226 Difference]: Without dead ends: 48319 [2021-10-08 16:07:57,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 188.7ms TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:07:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48319 states. [2021-10-08 16:07:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48319 to 48299. [2021-10-08 16:07:59,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48299 states, 48181 states have (on average 4.425852514476661) internal successors, (213242), 48298 states have internal predecessors, (213242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48299 states to 48299 states and 213242 transitions. [2021-10-08 16:07:59,829 INFO L78 Accepts]: Start accepts. Automaton has 48299 states and 213242 transitions. Word has length 24 [2021-10-08 16:07:59,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:59,830 INFO L470 AbstractCegarLoop]: Abstraction has 48299 states and 213242 transitions. [2021-10-08 16:07:59,830 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) [2021-10-08 16:07:59,830 INFO L276 IsEmpty]: Start isEmpty. Operand 48299 states and 213242 transitions. [2021-10-08 16:07:59,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-08 16:07:59,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:59,842 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:59,872 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 [2021-10-08 16:08:00,043 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 [2021-10-08 16:08:00,043 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:00,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash 244062856, now seen corresponding path program 4 times [2021-10-08 16:08:00,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:00,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770157908] [2021-10-08 16:08:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:00,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:00,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:00,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770157908] [2021-10-08 16:08:00,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770157908] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:00,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314474456] [2021-10-08 16:08:00,405 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:08:00,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:00,406 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) [2021-10-08 16:08:00,407 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 [2021-10-08 16:08:01,384 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:08:01,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:01,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-08 16:08:01,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:01,527 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:08:01,527 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 [2021-10-08 16:08:02,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:08:02,762 INFO L354 Elim1Store]: treesize reduction 152, result has 30.0 percent of original size [2021-10-08 16:08:02,762 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 [2021-10-08 16:08:03,028 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 [2021-10-08 16:08:03,098 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:03,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:08:03,163 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:03,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:03,229 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:03,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:08:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:03,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314474456] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:03,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:03,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 16:08:03,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617112095] [2021-10-08 16:08:03,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 16:08:03,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:03,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 16:08:03,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=917, Unknown=0, NotChecked=0, Total=992 [2021-10-08 16:08:03,532 INFO L87 Difference]: Start difference. First operand 48299 states and 213242 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) [2021-10-08 16:08:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:07,625 INFO L93 Difference]: Finished difference Result 48769 states and 214579 transitions. [2021-10-08 16:08:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 16:08:07,626 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 [2021-10-08 16:08:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:07,870 INFO L225 Difference]: With dead ends: 48769 [2021-10-08 16:08:07,870 INFO L226 Difference]: Without dead ends: 48769 [2021-10-08 16:08:07,870 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2184.3ms TimeCoverageRelationStatistics Valid=239, Invalid=1831, Unknown=0, NotChecked=0, Total=2070 [2021-10-08 16:08:07,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48769 states. [2021-10-08 16:08:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48769 to 48299. [2021-10-08 16:08:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48299 states, 48181 states have (on average 4.424814761005376) internal successors, (213192), 48298 states have internal predecessors, (213192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:09,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48299 states to 48299 states and 213192 transitions. [2021-10-08 16:08:09,805 INFO L78 Accepts]: Start accepts. Automaton has 48299 states and 213192 transitions. Word has length 24 [2021-10-08 16:08:09,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:09,805 INFO L470 AbstractCegarLoop]: Abstraction has 48299 states and 213192 transitions. [2021-10-08 16:08:09,805 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) [2021-10-08 16:08:09,805 INFO L276 IsEmpty]: Start isEmpty. Operand 48299 states and 213192 transitions. [2021-10-08 16:08:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:09,818 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:09,818 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:09,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2021-10-08 16:08:10,025 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 [2021-10-08 16:08:10,026 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:10,027 INFO L82 PathProgramCache]: Analyzing trace with hash 152758965, now seen corresponding path program 2 times [2021-10-08 16:08:10,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:10,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170304812] [2021-10-08 16:08:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:10,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:08:10,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:10,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170304812] [2021-10-08 16:08:10,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170304812] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:10,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724807937] [2021-10-08 16:08:10,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:08:10,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:10,189 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) [2021-10-08 16:08:10,190 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 [2021-10-08 16:08:11,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:08:11,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:11,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-08 16:08:11,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:11,189 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 55 treesize of output 53 [2021-10-08 16:08:11,827 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:08:11,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:08:11,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724807937] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:11,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:11,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2021-10-08 16:08:11,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801392606] [2021-10-08 16:08:11,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-08 16:08:11,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:11,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-08 16:08:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-10-08 16:08:11,937 INFO L87 Difference]: Start difference. First operand 48299 states and 213192 transitions. Second operand has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:12,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:12,807 INFO L93 Difference]: Finished difference Result 47255 states and 208933 transitions. [2021-10-08 16:08:12,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 16:08:12,807 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-08 16:08:12,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:13,030 INFO L225 Difference]: With dead ends: 47255 [2021-10-08 16:08:13,030 INFO L226 Difference]: Without dead ends: 45782 [2021-10-08 16:08:13,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 316.8ms TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2021-10-08 16:08:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45782 states. [2021-10-08 16:08:14,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45782 to 45782. [2021-10-08 16:08:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45782 states, 45664 states have (on average 4.455391555711282) internal successors, (203451), 45781 states have internal predecessors, (203451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45782 states to 45782 states and 203451 transitions. [2021-10-08 16:08:14,918 INFO L78 Accepts]: Start accepts. Automaton has 45782 states and 203451 transitions. Word has length 25 [2021-10-08 16:08:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:14,918 INFO L470 AbstractCegarLoop]: Abstraction has 45782 states and 203451 transitions. [2021-10-08 16:08:14,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 45782 states and 203451 transitions. [2021-10-08 16:08:14,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:14,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:14,933 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:14,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-10-08 16:08:15,146 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 [2021-10-08 16:08:15,147 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:15,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:15,148 INFO L82 PathProgramCache]: Analyzing trace with hash -949205602, now seen corresponding path program 3 times [2021-10-08 16:08:15,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:15,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476151783] [2021-10-08 16:08:15,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:15,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:08:16,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:16,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476151783] [2021-10-08 16:08:16,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476151783] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:16,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076255976] [2021-10-08 16:08:16,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:08:16,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:16,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:16,069 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) [2021-10-08 16:08:16,087 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 [2021-10-08 16:08:17,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:08:17,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:17,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 16:08:17,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:17,211 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 [2021-10-08 16:08:17,263 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:17,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 16:08:17,319 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:17,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:08:17,369 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:17,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:08:17,558 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 [2021-10-08 16:08:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:08:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076255976] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:17,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:17,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2021-10-08 16:08:17,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414036899] [2021-10-08 16:08:17,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 16:08:17,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:17,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 16:08:17,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:08:17,562 INFO L87 Difference]: Start difference. First operand 45782 states and 203451 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) [2021-10-08 16:08:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:20,382 INFO L93 Difference]: Finished difference Result 52606 states and 238509 transitions. [2021-10-08 16:08:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:08:20,382 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 [2021-10-08 16:08:20,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:20,669 INFO L225 Difference]: With dead ends: 52606 [2021-10-08 16:08:20,669 INFO L226 Difference]: Without dead ends: 52606 [2021-10-08 16:08:20,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1716.4ms TimeCoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 16:08:20,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52606 states. [2021-10-08 16:08:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52606 to 48087. [2021-10-08 16:08:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48087 states, 47969 states have (on average 4.531801788655173) internal successors, (217386), 48086 states have internal predecessors, (217386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:22,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48087 states to 48087 states and 217386 transitions. [2021-10-08 16:08:22,629 INFO L78 Accepts]: Start accepts. Automaton has 48087 states and 217386 transitions. Word has length 25 [2021-10-08 16:08:22,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:22,629 INFO L470 AbstractCegarLoop]: Abstraction has 48087 states and 217386 transitions. [2021-10-08 16:08:22,629 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) [2021-10-08 16:08:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 48087 states and 217386 transitions. [2021-10-08 16:08:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:22,640 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:22,640 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:22,669 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 [2021-10-08 16:08:22,840 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 [2021-10-08 16:08:22,841 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:22,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:22,842 INFO L82 PathProgramCache]: Analyzing trace with hash -949205497, now seen corresponding path program 2 times [2021-10-08 16:08:22,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:22,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881297198] [2021-10-08 16:08:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:22,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:08:23,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:23,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881297198] [2021-10-08 16:08:23,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881297198] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:23,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093979432] [2021-10-08 16:08:23,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:08:23,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:23,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:23,168 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) [2021-10-08 16:08:23,170 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 [2021-10-08 16:08:24,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:08:24,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:24,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-08 16:08:24,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:24,785 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 [2021-10-08 16:08:24,849 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:24,849 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 [2021-10-08 16:08:24,908 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:24,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:24,966 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:24,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:08:25,158 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 [2021-10-08 16:08:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:08:25,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093979432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:25,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:25,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2021-10-08 16:08:25,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222784441] [2021-10-08 16:08:25,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-08 16:08:25,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:25,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-08 16:08:25,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:08:25,168 INFO L87 Difference]: Start difference. First operand 48087 states and 217386 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) [2021-10-08 16:08:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:27,806 INFO L93 Difference]: Finished difference Result 52554 states and 236284 transitions. [2021-10-08 16:08:27,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:08:27,807 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 [2021-10-08 16:08:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:28,128 INFO L225 Difference]: With dead ends: 52554 [2021-10-08 16:08:28,128 INFO L226 Difference]: Without dead ends: 52554 [2021-10-08 16:08:28,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1174.9ms TimeCoverageRelationStatistics Valid=187, Invalid=1219, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 16:08:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52554 states. [2021-10-08 16:08:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52554 to 48087. [2021-10-08 16:08:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48087 states, 47969 states have (on average 4.48808605557756) internal successors, (215289), 48086 states have internal predecessors, (215289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48087 states to 48087 states and 215289 transitions. [2021-10-08 16:08:30,243 INFO L78 Accepts]: Start accepts. Automaton has 48087 states and 215289 transitions. Word has length 25 [2021-10-08 16:08:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:30,243 INFO L470 AbstractCegarLoop]: Abstraction has 48087 states and 215289 transitions. [2021-10-08 16:08:30,243 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) [2021-10-08 16:08:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 48087 states and 215289 transitions. [2021-10-08 16:08:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:30,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:30,261 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:30,306 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 [2021-10-08 16:08:30,475 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 [2021-10-08 16:08:30,475 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:30,476 INFO L82 PathProgramCache]: Analyzing trace with hash -894923680, now seen corresponding path program 7 times [2021-10-08 16:08:30,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:30,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829938096] [2021-10-08 16:08:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:30,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:30,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:30,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829938096] [2021-10-08 16:08:30,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829938096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:30,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48112809] [2021-10-08 16:08:30,713 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 16:08:30,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:30,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:30,714 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) [2021-10-08 16:08:30,716 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 [2021-10-08 16:08:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:31,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-08 16:08:31,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:31,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:08:32,036 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:32,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:08:32,098 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:32,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:32,402 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:08:32,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:32,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48112809] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:32,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:32,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 16:08:32,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120300124] [2021-10-08 16:08:32,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-08 16:08:32,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:32,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-08 16:08:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2021-10-08 16:08:32,444 INFO L87 Difference]: Start difference. First operand 48087 states and 215289 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) [2021-10-08 16:08:37,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:37,853 INFO L93 Difference]: Finished difference Result 93457 states and 390762 transitions. [2021-10-08 16:08:37,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-08 16:08:37,853 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 [2021-10-08 16:08:37,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:38,802 INFO L225 Difference]: With dead ends: 93457 [2021-10-08 16:08:38,803 INFO L226 Difference]: Without dead ends: 93385 [2021-10-08 16:08:38,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 2425.9ms TimeCoverageRelationStatistics Valid=485, Invalid=3675, Unknown=0, NotChecked=0, Total=4160 [2021-10-08 16:08:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93385 states. [2021-10-08 16:08:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93385 to 50877. [2021-10-08 16:08:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50877 states, 50759 states have (on average 4.49067160503556) internal successors, (227942), 50876 states have internal predecessors, (227942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50877 states to 50877 states and 227942 transitions. [2021-10-08 16:08:41,327 INFO L78 Accepts]: Start accepts. Automaton has 50877 states and 227942 transitions. Word has length 25 [2021-10-08 16:08:41,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:41,328 INFO L470 AbstractCegarLoop]: Abstraction has 50877 states and 227942 transitions. [2021-10-08 16:08:41,328 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) [2021-10-08 16:08:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 50877 states and 227942 transitions. [2021-10-08 16:08:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:41,341 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:41,341 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:41,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-10-08 16:08:41,541 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 [2021-10-08 16:08:41,541 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:41,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:41,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2109947989, now seen corresponding path program 6 times [2021-10-08 16:08:41,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:41,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180818237] [2021-10-08 16:08:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:41,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:42,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:42,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180818237] [2021-10-08 16:08:42,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180818237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:42,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298820641] [2021-10-08 16:08:42,224 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 16:08:42,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:42,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:42,225 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) [2021-10-08 16:08:42,227 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 [2021-10-08 16:08:43,349 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-08 16:08:43,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:43,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-08 16:08:43,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:43,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298820641] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:43,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:43,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-10-08 16:08:43,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386689725] [2021-10-08 16:08:43,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 16:08:43,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 16:08:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:08:43,643 INFO L87 Difference]: Start difference. First operand 50877 states and 227942 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) [2021-10-08 16:08:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:45,552 INFO L93 Difference]: Finished difference Result 49656 states and 217713 transitions. [2021-10-08 16:08:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-08 16:08:45,552 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 [2021-10-08 16:08:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:46,120 INFO L225 Difference]: With dead ends: 49656 [2021-10-08 16:08:46,121 INFO L226 Difference]: Without dead ends: 48043 [2021-10-08 16:08:46,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 429.1ms TimeCoverageRelationStatistics Valid=282, Invalid=1050, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 16:08:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48043 states. [2021-10-08 16:08:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48043 to 47396. [2021-10-08 16:08:47,756 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) [2021-10-08 16:08:48,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47396 states to 47396 states and 208808 transitions. [2021-10-08 16:08:48,561 INFO L78 Accepts]: Start accepts. Automaton has 47396 states and 208808 transitions. Word has length 25 [2021-10-08 16:08:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:48,561 INFO L470 AbstractCegarLoop]: Abstraction has 47396 states and 208808 transitions. [2021-10-08 16:08:48,561 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) [2021-10-08 16:08:48,561 INFO L276 IsEmpty]: Start isEmpty. Operand 47396 states and 208808 transitions. [2021-10-08 16:08:48,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:48,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:48,595 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:48,684 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 [2021-10-08 16:08:48,797 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 [2021-10-08 16:08:48,797 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:48,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:48,798 INFO L82 PathProgramCache]: Analyzing trace with hash -905081511, now seen corresponding path program 4 times [2021-10-08 16:08:48,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:48,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922859229] [2021-10-08 16:08:48,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:48,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:49,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:49,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922859229] [2021-10-08 16:08:49,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922859229] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:49,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215050717] [2021-10-08 16:08:49,169 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:08:49,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:49,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:49,170 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) [2021-10-08 16:08:49,172 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 [2021-10-08 16:08:50,250 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:08:50,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:50,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-08 16:08:50,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:50,636 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:08:50,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:50,886 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:08:50,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:08:50,921 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:50,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215050717] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:50,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:50,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-10-08 16:08:50,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161948615] [2021-10-08 16:08:50,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 16:08:50,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 16:08:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2021-10-08 16:08:50,922 INFO L87 Difference]: Start difference. First operand 47396 states and 208808 transitions. Second operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:53,044 INFO L93 Difference]: Finished difference Result 44308 states and 194038 transitions. [2021-10-08 16:08:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-08 16:08:53,045 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 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 [2021-10-08 16:08:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:53,276 INFO L225 Difference]: With dead ends: 44308 [2021-10-08 16:08:53,276 INFO L226 Difference]: Without dead ends: 43351 [2021-10-08 16:08:53,276 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 962.2ms TimeCoverageRelationStatistics Valid=321, Invalid=1571, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 16:08:53,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43351 states. [2021-10-08 16:08:54,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43351 to 38708. [2021-10-08 16:08:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38708 states, 38590 states have (on average 4.411194610002592) internal successors, (170228), 38707 states have internal predecessors, (170228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38708 states to 38708 states and 170228 transitions. [2021-10-08 16:08:55,073 INFO L78 Accepts]: Start accepts. Automaton has 38708 states and 170228 transitions. Word has length 25 [2021-10-08 16:08:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:55,073 INFO L470 AbstractCegarLoop]: Abstraction has 38708 states and 170228 transitions. [2021-10-08 16:08:55,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 38708 states and 170228 transitions. [2021-10-08 16:08:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-08 16:08:55,087 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:55,087 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:55,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2021-10-08 16:08:55,300 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 [2021-10-08 16:08:55,300 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:08:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:55,302 INFO L82 PathProgramCache]: Analyzing trace with hash -823962673, now seen corresponding path program 6 times [2021-10-08 16:08:55,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:55,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916373477] [2021-10-08 16:08:55,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:55,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:55,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:55,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916373477] [2021-10-08 16:08:55,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916373477] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:55,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128305913] [2021-10-08 16:08:55,511 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 16:08:55,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:55,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:55,513 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) [2021-10-08 16:08:55,518 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 [2021-10-08 16:08:56,648 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-10-08 16:08:56,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:56,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-08 16:08:56,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:08:57,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128305913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:57,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:57,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 30 [2021-10-08 16:08:57,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087506672] [2021-10-08 16:08:57,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:08:57,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:57,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:08:57,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:08:57,007 INFO L87 Difference]: Start difference. First operand 38708 states and 170228 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) [2021-10-08 16:08:58,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:58,967 INFO L93 Difference]: Finished difference Result 73137 states and 318351 transitions. [2021-10-08 16:08:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-08 16:08:58,967 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 [2021-10-08 16:08:58,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:59,399 INFO L225 Difference]: With dead ends: 73137 [2021-10-08 16:08:59,400 INFO L226 Difference]: Without dead ends: 73131 [2021-10-08 16:08:59,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 626.0ms TimeCoverageRelationStatistics Valid=470, Invalid=1786, Unknown=0, NotChecked=0, Total=2256 [2021-10-08 16:08:59,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73131 states. [2021-10-08 16:09:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73131 to 59174. [2021-10-08 16:09:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59174 states, 59056 states have (on average 4.47752980222162) internal successors, (264425), 59173 states have internal predecessors, (264425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59174 states to 59174 states and 264425 transitions. [2021-10-08 16:09:02,261 INFO L78 Accepts]: Start accepts. Automaton has 59174 states and 264425 transitions. Word has length 25 [2021-10-08 16:09:02,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:02,261 INFO L470 AbstractCegarLoop]: Abstraction has 59174 states and 264425 transitions. [2021-10-08 16:09:02,261 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) [2021-10-08 16:09:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 59174 states and 264425 transitions. [2021-10-08 16:09:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:09:02,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:02,276 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:02,306 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 [2021-10-08 16:09:02,476 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 [2021-10-08 16:09:02,476 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:09:02,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:02,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1746846197, now seen corresponding path program 3 times [2021-10-08 16:09:02,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:02,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855250015] [2021-10-08 16:09:02,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:02,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:09:02,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:02,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855250015] [2021-10-08 16:09:02,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855250015] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:02,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643151046] [2021-10-08 16:09:02,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:09:02,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:02,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:02,893 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) [2021-10-08 16:09:02,894 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 [2021-10-08 16:09:04,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:09:04,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:09:04,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 16:09:04,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:04,285 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 [2021-10-08 16:09:04,355 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:04,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:09:04,422 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:04,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:09:04,957 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:04,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:09:05,089 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:05,090 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 28 treesize of output 27 [2021-10-08 16:09:05,250 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 [2021-10-08 16:09:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:09:05,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643151046] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:05,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:05,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-08 16:09:05,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815310663] [2021-10-08 16:09:05,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:09:05,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:05,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:09:05,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:09:05,253 INFO L87 Difference]: Start difference. First operand 59174 states and 264425 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) [2021-10-08 16:09:08,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:08,529 INFO L93 Difference]: Finished difference Result 93167 states and 411423 transitions. [2021-10-08 16:09:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:09:08,529 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 [2021-10-08 16:09:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:09,568 INFO L225 Difference]: With dead ends: 93167 [2021-10-08 16:09:09,571 INFO L226 Difference]: Without dead ends: 92595 [2021-10-08 16:09:09,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1530.5ms TimeCoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 16:09:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92595 states. [2021-10-08 16:09:11,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92595 to 69256. [2021-10-08 16:09:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69256 states, 69138 states have (on average 4.549524140125546) internal successors, (314545), 69255 states have internal predecessors, (314545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:13,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69256 states to 69256 states and 314545 transitions. [2021-10-08 16:09:13,060 INFO L78 Accepts]: Start accepts. Automaton has 69256 states and 314545 transitions. Word has length 26 [2021-10-08 16:09:13,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:13,060 INFO L470 AbstractCegarLoop]: Abstraction has 69256 states and 314545 transitions. [2021-10-08 16:09:13,060 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) [2021-10-08 16:09:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 69256 states and 314545 transitions. [2021-10-08 16:09:13,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:09:13,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:13,081 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:13,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-08 16:09:13,294 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 [2021-10-08 16:09:13,294 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:09:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:13,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1746846092, now seen corresponding path program 2 times [2021-10-08 16:09:13,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:13,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209477732] [2021-10-08 16:09:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:13,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:09:13,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:13,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209477732] [2021-10-08 16:09:13,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209477732] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:13,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890067387] [2021-10-08 16:09:13,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:09:13,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:13,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:13,716 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) [2021-10-08 16:09:13,717 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 [2021-10-08 16:09:14,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:09:14,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:09:14,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-08 16:09:14,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:15,060 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 [2021-10-08 16:09:15,124 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:15,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:09:15,190 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:15,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:09:15,259 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:15,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-08 16:09:15,384 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:15,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:09:15,535 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 [2021-10-08 16:09:15,538 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:09:15,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890067387] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:15,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:15,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-08 16:09:15,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424218281] [2021-10-08 16:09:15,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:09:15,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:15,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:09:15,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:09:15,540 INFO L87 Difference]: Start difference. First operand 69256 states and 314545 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) [2021-10-08 16:09:19,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:19,310 INFO L93 Difference]: Finished difference Result 90055 states and 397606 transitions. [2021-10-08 16:09:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:09:19,311 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 [2021-10-08 16:09:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:19,928 INFO L225 Difference]: With dead ends: 90055 [2021-10-08 16:09:19,928 INFO L226 Difference]: Without dead ends: 90055 [2021-10-08 16:09:19,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1457.3ms TimeCoverageRelationStatistics Valid=185, Invalid=1297, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 16:09:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90055 states. [2021-10-08 16:09:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90055 to 66716. [2021-10-08 16:09:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66716 states, 66598 states have (on average 4.490540256464158) internal successors, (299061), 66715 states have internal predecessors, (299061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66716 states to 66716 states and 299061 transitions. [2021-10-08 16:09:23,225 INFO L78 Accepts]: Start accepts. Automaton has 66716 states and 299061 transitions. Word has length 26 [2021-10-08 16:09:23,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:23,225 INFO L470 AbstractCegarLoop]: Abstraction has 66716 states and 299061 transitions. [2021-10-08 16:09:23,226 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) [2021-10-08 16:09:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 66716 states and 299061 transitions. [2021-10-08 16:09:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:09:23,243 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:23,243 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:23,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-10-08 16:09:23,443 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 [2021-10-08 16:09:23,444 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:09:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:23,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1474597381, now seen corresponding path program 5 times [2021-10-08 16:09:23,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:23,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456019302] [2021-10-08 16:09:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:23,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:09:23,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:23,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456019302] [2021-10-08 16:09:23,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456019302] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:23,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899377579] [2021-10-08 16:09:23,886 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:09:23,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:23,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:23,888 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) [2021-10-08 16:09:23,895 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 [2021-10-08 16:09:25,524 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-08 16:09:25,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:09:25,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-08 16:09:25,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:25,788 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 [2021-10-08 16:09:25,862 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:25,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:09:25,938 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:25,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:09:26,009 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:26,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:09:26,081 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:26,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-10-08 16:09:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:09:26,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899377579] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:26,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:26,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-10-08 16:09:26,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124326745] [2021-10-08 16:09:26,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 16:09:26,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:26,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 16:09:26,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=974, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 16:09:26,386 INFO L87 Difference]: Start difference. First operand 66716 states and 299061 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) [2021-10-08 16:09:30,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:30,619 INFO L93 Difference]: Finished difference Result 93127 states and 401282 transitions. [2021-10-08 16:09:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 16:09:30,619 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 26 [2021-10-08 16:09:30,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:31,789 INFO L225 Difference]: With dead ends: 93127 [2021-10-08 16:09:31,789 INFO L226 Difference]: Without dead ends: 92983 [2021-10-08 16:09:31,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1946.7ms TimeCoverageRelationStatistics Valid=230, Invalid=1840, Unknown=0, NotChecked=0, Total=2070 [2021-10-08 16:09:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92983 states. [2021-10-08 16:09:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92983 to 66568. [2021-10-08 16:09:34,368 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) [2021-10-08 16:09:35,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66568 states to 66568 states and 294844 transitions. [2021-10-08 16:09:35,255 INFO L78 Accepts]: Start accepts. Automaton has 66568 states and 294844 transitions. Word has length 26 [2021-10-08 16:09:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:35,255 INFO L470 AbstractCegarLoop]: Abstraction has 66568 states and 294844 transitions. [2021-10-08 16:09:35,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 16:09:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 66568 states and 294844 transitions. [2021-10-08 16:09:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:09:35,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:35,280 INFO L512 BasicCegarLoop]: trace histogram [6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:35,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-08 16:09:35,480 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 [2021-10-08 16:09:35,480 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:09:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:35,481 INFO L82 PathProgramCache]: Analyzing trace with hash -744489881, now seen corresponding path program 7 times [2021-10-08 16:09:35,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:35,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770956431] [2021-10-08 16:09:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:35,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:09:35,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:35,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770956431] [2021-10-08 16:09:35,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770956431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:35,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322147391] [2021-10-08 16:09:35,911 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 16:09:35,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:35,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:35,913 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) [2021-10-08 16:09:35,920 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 [2021-10-08 16:09:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:37,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-08 16:09:37,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:37,228 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:09:37,228 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 836 treesize of output 834 [2021-10-08 16:09:39,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:09:39,903 INFO L354 Elim1Store]: treesize reduction 148, result has 31.8 percent of original size [2021-10-08 16:09:39,904 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 80 treesize of output 132 [2021-10-08 16:09:40,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-08 16:09:40,352 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:40,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-08 16:09:40,432 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:40,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:09:40,501 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:40,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 16:09:40,561 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:40,562 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 27 treesize of output 26 [2021-10-08 16:09:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:09:40,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322147391] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:40,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:40,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2021-10-08 16:09:40,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408813751] [2021-10-08 16:09:40,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-08 16:09:40,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:40,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-08 16:09:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1035, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 16:09:40,876 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) [2021-10-08 16:09:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:46,102 INFO L93 Difference]: Finished difference Result 110101 states and 481249 transitions. [2021-10-08 16:09:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 16:09:46,103 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 [2021-10-08 16:09:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:47,456 INFO L225 Difference]: With dead ends: 110101 [2021-10-08 16:09:47,456 INFO L226 Difference]: Without dead ends: 110101 [2021-10-08 16:09:47,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2390.2ms TimeCoverageRelationStatistics Valid=248, Invalid=1914, Unknown=0, NotChecked=0, Total=2162 [2021-10-08 16:09:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110101 states. [2021-10-08 16:09:49,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110101 to 72576. [2021-10-08 16:09:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72576 states, 72458 states have (on average 4.503050042783405) internal successors, (326282), 72575 states have internal predecessors, (326282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72576 states to 72576 states and 326282 transitions. [2021-10-08 16:09:51,072 INFO L78 Accepts]: Start accepts. Automaton has 72576 states and 326282 transitions. Word has length 26 [2021-10-08 16:09:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:51,072 INFO L470 AbstractCegarLoop]: Abstraction has 72576 states and 326282 transitions. [2021-10-08 16:09:51,072 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) [2021-10-08 16:09:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 72576 states and 326282 transitions. [2021-10-08 16:09:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:09:51,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:51,090 INFO L512 BasicCegarLoop]: trace histogram [6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:51,119 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 [2021-10-08 16:09:51,290 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 [2021-10-08 16:09:51,291 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:09:51,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash -744489816, now seen corresponding path program 5 times [2021-10-08 16:09:51,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:51,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946211362] [2021-10-08 16:09:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:51,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:09:51,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:51,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946211362] [2021-10-08 16:09:51,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946211362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:51,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067949261] [2021-10-08 16:09:51,730 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:09:51,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:51,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:51,733 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) [2021-10-08 16:09:51,734 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 [2021-10-08 16:09:53,460 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-08 16:09:53,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:09:53,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-08 16:09:53,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:53,708 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 [2021-10-08 16:09:53,777 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:53,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:09:53,849 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:53,849 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 26 treesize of output 25 [2021-10-08 16:09:53,920 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:53,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:09:53,987 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-08 16:09:53,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:09:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:09:54,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067949261] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:54,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:54,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-10-08 16:09:54,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889298131] [2021-10-08 16:09:54,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-08 16:09:54,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-08 16:09:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=974, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 16:09:54,276 INFO L87 Difference]: Start difference. First operand 72576 states and 326282 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) [2021-10-08 16:09:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:58,890 INFO L93 Difference]: Finished difference Result 107097 states and 468534 transitions. [2021-10-08 16:09:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 16:09:58,895 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 26 [2021-10-08 16:09:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:59,764 INFO L225 Difference]: With dead ends: 107097 [2021-10-08 16:09:59,764 INFO L226 Difference]: Without dead ends: 107097 [2021-10-08 16:09:59,764 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1853.1ms TimeCoverageRelationStatistics Valid=230, Invalid=1840, Unknown=0, NotChecked=0, Total=2070 [2021-10-08 16:09:59,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107097 states. [2021-10-08 16:10:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107097 to 72576. [2021-10-08 16:10:03,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72576 states, 72458 states have (on average 4.461591542686798) internal successors, (323278), 72575 states have internal predecessors, (323278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:10:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72576 states to 72576 states and 323278 transitions. [2021-10-08 16:10:03,525 INFO L78 Accepts]: Start accepts. Automaton has 72576 states and 323278 transitions. Word has length 26 [2021-10-08 16:10:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:10:03,525 INFO L470 AbstractCegarLoop]: Abstraction has 72576 states and 323278 transitions. [2021-10-08 16:10:03,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 16:10:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 72576 states and 323278 transitions. [2021-10-08 16:10:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:10:03,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:10:03,542 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:10:03,572 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 [2021-10-08 16:10:03,743 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 [2021-10-08 16:10:03,743 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:10:03,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:10:03,744 INFO L82 PathProgramCache]: Analyzing trace with hash 461757616, now seen corresponding path program 2 times [2021-10-08 16:10:03,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:10:03,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698639180] [2021-10-08 16:10:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:10:03,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:10:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:10:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-08 16:10:04,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:10:04,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698639180] [2021-10-08 16:10:04,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698639180] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:10:04,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900823719] [2021-10-08 16:10:04,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:10:04,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:10:04,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:10:04,431 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:10:04,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-08 16:10:05,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:10:05,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:10:05,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 16:10:05,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:10:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-08 16:10:05,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900823719] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:10:05,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:10:05,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-08 16:10:05,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584027846] [2021-10-08 16:10:05,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 16:10:05,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:10:05,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 16:10:05,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:10:05,679 INFO L87 Difference]: Start difference. First operand 72576 states and 323278 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 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) [2021-10-08 16:10:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:10:07,289 INFO L93 Difference]: Finished difference Result 119760 states and 522076 transitions. [2021-10-08 16:10:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:10:07,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 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 26 [2021-10-08 16:10:07,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:10:08,735 INFO L225 Difference]: With dead ends: 119760 [2021-10-08 16:10:08,735 INFO L226 Difference]: Without dead ends: 119760 [2021-10-08 16:10:08,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:10:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119760 states. [2021-10-08 16:10:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119760 to 75607. [2021-10-08 16:10:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75607 states, 75489 states have (on average 4.495502656016108) internal successors, (339361), 75606 states have internal predecessors, (339361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:10:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75607 states to 75607 states and 339361 transitions. [2021-10-08 16:10:13,250 INFO L78 Accepts]: Start accepts. Automaton has 75607 states and 339361 transitions. Word has length 26 [2021-10-08 16:10:13,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:10:13,250 INFO L470 AbstractCegarLoop]: Abstraction has 75607 states and 339361 transitions. [2021-10-08 16:10:13,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 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) [2021-10-08 16:10:13,251 INFO L276 IsEmpty]: Start isEmpty. Operand 75607 states and 339361 transitions. [2021-10-08 16:10:13,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-08 16:10:13,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:10:13,273 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:10:13,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2021-10-08 16:10:13,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-10-08 16:10:13,487 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2021-10-08 16:10:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:10:13,487 INFO L82 PathProgramCache]: Analyzing trace with hash 461757617, now seen corresponding path program 7 times [2021-10-08 16:10:13,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:10:13,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544347934] [2021-10-08 16:10:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:10:13,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:10:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:10:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:10:13,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:10:13,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544347934] [2021-10-08 16:10:13,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544347934] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:10:13,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111322635] [2021-10-08 16:10:13,888 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 16:10:13,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:10:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:10:13,890 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:10:13,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-08 16:10:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:10:15,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-08 16:10:15,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:10:15,554 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:10:15,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2021-10-08 16:10:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:10:15,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111322635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:10:15,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:10:15,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2021-10-08 16:10:15,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862032534] [2021-10-08 16:10:15,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-08 16:10:15,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:10:15,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-08 16:10:15,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 16:10:15,844 INFO L87 Difference]: Start difference. First operand 75607 states and 339361 transitions. Second operand has 34 states, 34 states have (on average 1.5294117647058822) 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) [2021-10-08 16:10:24,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:10:24,722 INFO L93 Difference]: Finished difference Result 91575 states and 401190 transitions. [2021-10-08 16:10:24,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-08 16:10:24,724 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.5294117647058822) 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 [2021-10-08 16:10:24,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2021-10-08 16:10:24,923 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 16:10:24,923 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 [2021-10-08 16:10:25,508 INFO L225 Difference]: With dead ends: 91575 [2021-10-08 16:10:25,508 INFO L226 Difference]: Without dead ends: 91575 [2021-10-08 16:10:25,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1603 ImplicationChecksByTransitivity, 4655.6ms TimeCoverageRelationStatistics Valid=875, Invalid=6607, Unknown=0, NotChecked=0, Total=7482 [2021-10-08 16:10:25,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91575 states. [2021-10-08 16:10:25,638 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-10-08 16:10:25,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,87 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:10:25,839 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2021-10-08 16:10:25,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,842 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,844 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:10:25,854 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 16:10:25,854 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 16:10:25,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:10:25 BasicIcfg [2021-10-08 16:10:25,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 16:10:25,856 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-08 16:10:25,857 INFO L168 Benchmark]: Toolchain (without parser) took 609944.31 ms. Allocated memory was 155.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 129.0 MB in the beginning and 6.8 GB in the end (delta: -6.7 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-10-08 16:10:25,857 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory was 126.3 MB in the beginning and 126.2 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 16:10:25,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.75 ms. Allocated memory is still 155.2 MB. Free memory was 128.7 MB in the beginning and 117.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-08 16:10:25,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.44 ms. Allocated memory is still 155.2 MB. Free memory was 117.2 MB in the beginning and 114.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:10:25,858 INFO L168 Benchmark]: Boogie Preprocessor took 46.30 ms. Allocated memory is still 155.2 MB. Free memory was 114.7 MB in the beginning and 112.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:10:25,858 INFO L168 Benchmark]: RCFGBuilder took 1098.44 ms. Allocated memory is still 155.2 MB. Free memory was 112.4 MB in the beginning and 123.2 MB in the end (delta: -10.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2021-10-08 16:10:25,858 INFO L168 Benchmark]: TraceAbstraction took 608178.17 ms. Allocated memory was 155.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 122.7 MB in the beginning and 6.8 GB in the end (delta: -6.7 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-10-08 16:10:25,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory was 126.3 MB in the beginning and 126.2 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 532.75 ms. Allocated memory is still 155.2 MB. Free memory was 128.7 MB in the beginning and 117.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.44 ms. Allocated memory is still 155.2 MB. Free memory was 117.2 MB in the beginning and 114.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.30 ms. Allocated memory is still 155.2 MB. Free memory was 114.7 MB in the beginning and 112.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1098.44 ms. Allocated memory is still 155.2 MB. Free memory was 112.4 MB in the beginning and 123.2 MB in the end (delta: -10.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 608178.17 ms. Allocated memory was 155.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 122.7 MB in the beginning and 6.8 GB in the end (delta: -6.7 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23139.9ms, 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: 365, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 328, negative conditional: 0, negative unconditional: 328, 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 executing MinimizeSevpa. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 583 locations, 67 error locations. Started 1 CEGAR loops. OverallTime: 607792.6ms, OverallIterations: 105, TraceHistogramMax: 6, EmptinessCheckTime: 655.5ms, AutomataDifference: 251382.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23607.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8484 SDtfs, 46836 SDslu, 64940 SDs, 0 SdLazy, 78149 SolverSat, 5424 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 61605.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3323 GetRequests, 798 SyntacticMatches, 35 SemanticMatches, 2490 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17516 ImplicationChecksByTransitivity, 87394.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=83976occurred in iteration=23, InterpolantAutomatonStates: 1367, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 184086.0ms AutomataMinimizationTime, 105 MinimizatonAttempts, 1047999 StatesRemovedByMinimization, 96 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1999.6ms SsaConstructionTime, 6796.3ms SatisfiabilityAnalysisTime, 73913.7ms InterpolantComputationTime, 3244 NumberOfCodeBlocks, 3219 NumberOfCodeBlocksAsserted, 271 NumberOfCheckSat, 3053 ConstructedInterpolants, 68 QuantifiedInterpolants, 39186 SizeOfPredicates, 1051 NumberOfNonLiveVariables, 18162 ConjunctsInSsa, 2143 ConjunctsInUnsatCore, 191 InterpolantComputations, 25 PerfectInterpolantSequences, 728/2796 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