/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-min-max-inc.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:03:25,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:03:25,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:03:25,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-07 15:03:25,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-07 15:03:25,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-07 15:03:25,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-07 15:03:25,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-07 15:03:25,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-07 15:03:25,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-07 15:03:25,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-07 15:03:25,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-07 15:03:25,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:03:25,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:03:25,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:03:25,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:03:25,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:03:25,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:03:25,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:03:25,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:03:25,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:03:25,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:03:25,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:03:25,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:03:25,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-07 15:03:25,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-07 15:03:25,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-07 15:03:25,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-07 15:03:25,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-07 15:03:25,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-07 15:03:25,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 15:03:25,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 15:03:25,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 15:03:25,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 15:03:25,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 15:03:25,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 15:03:25,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 15:03:25,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 15:03:25,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:03:25,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:03:25,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:03:25,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 15:03:25,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:03:25,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:03:25,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:03:25,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:03:25,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:03:25,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:03:25,261 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:03:25,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:03:25,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:03:25,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:03:25,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:03:25,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:03:25,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:03:25,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 15:03:25,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:03:25,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 15:03:25,266 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 15:03:25,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:03:25,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 15:03:25,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:03:25,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 15:03:25,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:03:25,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:03:25,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:03:25,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:03:25,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:03:25,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:03:25,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 15:03:25,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 15:03:25,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 15:03:25,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 15:03:25,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:03:25,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:03:25,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:03:25,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:03:25,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:03:25,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:03:25,799 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:03:25,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2021-10-07 15:03:25,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a258f5f9a/4d20ae86c60643ab8ad7c46c77e53415/FLAGbc171d925 [2021-10-07 15:03:26,629 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:03:26,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2021-10-07 15:03:26,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a258f5f9a/4d20ae86c60643ab8ad7c46c77e53415/FLAGbc171d925 [2021-10-07 15:03:26,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a258f5f9a/4d20ae86c60643ab8ad7c46c77e53415 [2021-10-07 15:03:26,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:03:26,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 15:03:27,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:03:27,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:03:27,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:03:27,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:03:26" (1/1) ... [2021-10-07 15:03:27,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a61e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27, skipping insertion in model container [2021-10-07 15:03:27,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:03:26" (1/1) ... [2021-10-07 15:03:27,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:03:27,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:03:27,249 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-min-max-inc.wvr.c[2504,2517] [2021-10-07 15:03:27,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:03:27,267 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:03:27,298 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-min-max-inc.wvr.c[2504,2517] [2021-10-07 15:03:27,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:03:27,322 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:03:27,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27 WrapperNode [2021-10-07 15:03:27,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:03:27,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:03:27,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:03:27,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:03:27,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:03:27,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:03:27,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:03:27,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:03:27,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:03:27,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:03:27,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:03:27,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:03:27,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (1/1) ... [2021-10-07 15:03:27,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:03:27,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:03:27,473 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) [2021-10-07 15:03:27,496 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 [2021-10-07 15:03:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:03:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 15:03:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 15:03:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:03:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:03:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:03:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:03:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:03:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:03:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-07 15:03:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-07 15:03:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 15:03:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:03:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:03:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:03:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:03:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:03:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:03:27,557 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:03:28,463 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:03:28,463 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-07 15:03:28,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:28 BoogieIcfgContainer [2021-10-07 15:03:28,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:03:28,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:03:28,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:03:28,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:03:28,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:03:26" (1/3) ... [2021-10-07 15:03:28,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b02cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:28, skipping insertion in model container [2021-10-07 15:03:28,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:27" (2/3) ... [2021-10-07 15:03:28,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b02cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:28, skipping insertion in model container [2021-10-07 15:03:28,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:28" (3/3) ... [2021-10-07 15:03:28,481 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2021-10-07 15:03:28,492 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 15:03:28,493 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:03:28,493 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-07 15:03:28,493 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:03:28,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,567 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,569 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,570 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,570 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,573 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,576 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,577 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,580 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,581 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,585 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,586 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,586 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,586 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,587 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,587 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,588 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,589 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,591 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,593 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,605 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,605 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,609 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,610 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,612 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,613 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,615 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,615 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,616 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,616 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,616 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,616 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,617 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,618 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,619 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,620 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,620 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,620 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,620 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,621 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,621 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,621 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,622 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,622 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,622 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,622 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,623 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,623 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,623 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,623 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,623 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,624 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,625 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,625 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,626 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,626 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,626 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,626 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,626 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,631 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,631 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,632 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,632 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,632 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,632 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,632 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,633 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,634 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,634 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,634 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,634 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,644 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,647 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~short16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,651 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,651 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,658 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:03:28,678 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-07 15:03:28,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:03:28,783 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 [2021-10-07 15:03:28,784 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-10-07 15:03:28,810 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:03:28,824 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 200 transitions, 432 flow [2021-10-07 15:03:28,828 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 200 transitions, 432 flow [2021-10-07 15:03:28,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 200 transitions, 432 flow [2021-10-07 15:03:28,994 INFO L129 PetriNetUnfolder]: 14/196 cut-off events. [2021-10-07 15:03:28,994 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-07 15:03:29,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 196 events. 14/196 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 348 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 157. Up to 2 conditions per place. [2021-10-07 15:03:29,017 INFO L116 LiptonReduction]: Number of co-enabled transitions 7740 [2021-10-07 15:03:37,975 INFO L131 LiptonReduction]: Checked pairs total: 16800 [2021-10-07 15:03:37,976 INFO L133 LiptonReduction]: Total number of compositions: 183 [2021-10-07 15:03:37,986 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 61 transitions, 154 flow [2021-10-07 15:03:38,865 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12501 states, 12365 states have (on average 4.602183582693085) internal successors, (56906), 12500 states have internal predecessors, (56906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 12501 states, 12365 states have (on average 4.602183582693085) internal successors, (56906), 12500 states have internal predecessors, (56906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:38,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:03:38,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:38,996 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:03:38,996 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:39,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:39,003 INFO L82 PathProgramCache]: Analyzing trace with hash 24768, now seen corresponding path program 1 times [2021-10-07 15:03:39,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:39,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432217859] [2021-10-07 15:03:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:39,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:39,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:39,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432217859] [2021-10-07 15:03:39,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432217859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:39,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:39,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:03:39,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446468076] [2021-10-07 15:03:39,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:03:39,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:03:39,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:03:39,436 INFO L87 Difference]: Start difference. First operand has 12501 states, 12365 states have (on average 4.602183582693085) internal successors, (56906), 12500 states have internal predecessors, (56906), 0 states have call successors, (0), 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) [2021-10-07 15:03:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:40,424 INFO L93 Difference]: Finished difference Result 24999 states and 113809 transitions. [2021-10-07 15:03:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:03:40,426 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 [2021-10-07 15:03:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:41,036 INFO L225 Difference]: With dead ends: 24999 [2021-10-07 15:03:41,036 INFO L226 Difference]: Without dead ends: 24999 [2021-10-07 15:03:41,037 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:03:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24999 states. [2021-10-07 15:03:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24999 to 12502. [2021-10-07 15:03:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12502 states, 12366 states have (on average 4.601973152191492) internal successors, (56908), 12501 states have internal predecessors, (56908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12502 states to 12502 states and 56908 transitions. [2021-10-07 15:03:42,617 INFO L78 Accepts]: Start accepts. Automaton has 12502 states and 56908 transitions. Word has length 2 [2021-10-07 15:03:42,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:42,624 INFO L470 AbstractCegarLoop]: Abstraction has 12502 states and 56908 transitions. [2021-10-07 15:03:42,624 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) [2021-10-07 15:03:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 12502 states and 56908 transitions. [2021-10-07 15:03:42,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:03:42,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:42,625 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:03:42,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 15:03:42,631 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:42,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:42,632 INFO L82 PathProgramCache]: Analyzing trace with hash 769171, now seen corresponding path program 1 times [2021-10-07 15:03:42,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:42,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758047335] [2021-10-07 15:03:42,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:42,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:42,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:42,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758047335] [2021-10-07 15:03:42,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758047335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:03:42,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582085702] [2021-10-07 15:03:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:42,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:03:42,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:03:42,822 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) [2021-10-07 15:03:42,844 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 [2021-10-07 15:03:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:42,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:03:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:03:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:42,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582085702] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:42,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:03:42,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-07 15:03:42,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794743294] [2021-10-07 15:03:42,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:03:42,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:42,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:03:42,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:03:42,961 INFO L87 Difference]: Start difference. First operand 12502 states and 56908 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) [2021-10-07 15:03:43,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:43,744 INFO L93 Difference]: Finished difference Result 24998 states and 113808 transitions. [2021-10-07 15:03:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:03:43,745 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 [2021-10-07 15:03:43,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:44,192 INFO L225 Difference]: With dead ends: 24998 [2021-10-07 15:03:44,192 INFO L226 Difference]: Without dead ends: 24998 [2021-10-07 15:03:44,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:03:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24998 states. [2021-10-07 15:03:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24998 to 12501. [2021-10-07 15:03:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12501 states, 12366 states have (on average 4.6018922852983986) internal successors, (56907), 12500 states have internal predecessors, (56907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12501 states to 12501 states and 56907 transitions. [2021-10-07 15:03:45,420 INFO L78 Accepts]: Start accepts. Automaton has 12501 states and 56907 transitions. Word has length 3 [2021-10-07 15:03:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:45,421 INFO L470 AbstractCegarLoop]: Abstraction has 12501 states and 56907 transitions. [2021-10-07 15:03:45,421 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) [2021-10-07 15:03:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 12501 states and 56907 transitions. [2021-10-07 15:03:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:03:45,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:45,422 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:03:45,470 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 [2021-10-07 15:03:45,636 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 [2021-10-07 15:03:45,638 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:45,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:45,639 INFO L82 PathProgramCache]: Analyzing trace with hash 769172, now seen corresponding path program 1 times [2021-10-07 15:03:45,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:45,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997003122] [2021-10-07 15:03:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:45,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:45,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:45,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997003122] [2021-10-07 15:03:45,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997003122] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:03:45,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209137468] [2021-10-07 15:03:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:45,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:03:45,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:03:45,708 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) [2021-10-07 15:03:45,710 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 [2021-10-07 15:03:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:45,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:03:45,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:03:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:45,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209137468] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:03:45,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:03:45,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-07 15:03:45,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315494989] [2021-10-07 15:03:45,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:03:45,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:45,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:03:45,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:03:45,799 INFO L87 Difference]: Start difference. First operand 12501 states and 56907 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) [2021-10-07 15:03:46,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:46,668 INFO L93 Difference]: Finished difference Result 37496 states and 170711 transitions. [2021-10-07 15:03:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:03:46,669 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 [2021-10-07 15:03:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:47,474 INFO L225 Difference]: With dead ends: 37496 [2021-10-07 15:03:47,474 INFO L226 Difference]: Without dead ends: 37496 [2021-10-07 15:03:47,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:03:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37496 states. [2021-10-07 15:03:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37496 to 12502. [2021-10-07 15:03:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12502 states, 12367 states have (on average 4.601681895366702) internal successors, (56909), 12501 states have internal predecessors, (56909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12502 states to 12502 states and 56909 transitions. [2021-10-07 15:03:48,942 INFO L78 Accepts]: Start accepts. Automaton has 12502 states and 56909 transitions. Word has length 3 [2021-10-07 15:03:48,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:48,942 INFO L470 AbstractCegarLoop]: Abstraction has 12502 states and 56909 transitions. [2021-10-07 15:03:48,943 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) [2021-10-07 15:03:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12502 states and 56909 transitions. [2021-10-07 15:03:48,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:03:48,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:48,943 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:03:48,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-07 15:03:49,156 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 [2021-10-07 15:03:49,157 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:49,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:49,158 INFO L82 PathProgramCache]: Analyzing trace with hash 23845665, now seen corresponding path program 2 times [2021-10-07 15:03:49,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:49,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567264639] [2021-10-07 15:03:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:49,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:49,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:49,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567264639] [2021-10-07 15:03:49,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567264639] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:03:49,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260881737] [2021-10-07 15:03:49,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:03:49,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:03:49,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:03:49,268 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) [2021-10-07 15:03:49,269 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 [2021-10-07 15:03:49,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:03:49,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:03:49,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:03:49,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:03:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-07 15:03:49,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260881737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:49,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:03:49,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-07 15:03:49,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297921230] [2021-10-07 15:03:49,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:03:49,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:03:49,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:03:49,353 INFO L87 Difference]: Start difference. First operand 12502 states and 56909 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) [2021-10-07 15:03:49,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:49,656 INFO L93 Difference]: Finished difference Result 12501 states and 56908 transitions. [2021-10-07 15:03:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:03:49,657 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 [2021-10-07 15:03:49,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:49,761 INFO L225 Difference]: With dead ends: 12501 [2021-10-07 15:03:49,762 INFO L226 Difference]: Without dead ends: 12501 [2021-10-07 15:03:49,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:03:49,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12501 states. [2021-10-07 15:03:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12501 to 12499. [2021-10-07 15:03:50,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12499 states, 12365 states have (on average 4.602021835826931) internal successors, (56904), 12498 states have internal predecessors, (56904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12499 states to 12499 states and 56904 transitions. [2021-10-07 15:03:50,613 INFO L78 Accepts]: Start accepts. Automaton has 12499 states and 56904 transitions. Word has length 4 [2021-10-07 15:03:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:50,614 INFO L470 AbstractCegarLoop]: Abstraction has 12499 states and 56904 transitions. [2021-10-07 15:03:50,614 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) [2021-10-07 15:03:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 12499 states and 56904 transitions. [2021-10-07 15:03:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:03:50,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:50,615 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:50,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-07 15:03:50,828 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 [2021-10-07 15:03:50,829 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:50,830 INFO L82 PathProgramCache]: Analyzing trace with hash 295343047, now seen corresponding path program 1 times [2021-10-07 15:03:50,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:50,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600940830] [2021-10-07 15:03:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:50,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:50,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:50,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600940830] [2021-10-07 15:03:50,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600940830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:50,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:50,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:03:50,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078096257] [2021-10-07 15:03:50,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:03:50,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:03:50,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:03:50,908 INFO L87 Difference]: Start difference. First operand 12499 states and 56904 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) [2021-10-07 15:03:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:51,364 INFO L93 Difference]: Finished difference Result 19285 states and 88064 transitions. [2021-10-07 15:03:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:03:51,370 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 [2021-10-07 15:03:51,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:51,583 INFO L225 Difference]: With dead ends: 19285 [2021-10-07 15:03:51,583 INFO L226 Difference]: Without dead ends: 19285 [2021-10-07 15:03:51,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:03:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19285 states. [2021-10-07 15:03:52,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19285 to 17067. [2021-10-07 15:03:52,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17067 states, 16933 states have (on average 4.711273843973307) internal successors, (79776), 17066 states have internal predecessors, (79776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17067 states to 17067 states and 79776 transitions. [2021-10-07 15:03:52,648 INFO L78 Accepts]: Start accepts. Automaton has 17067 states and 79776 transitions. Word has length 8 [2021-10-07 15:03:52,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:52,649 INFO L470 AbstractCegarLoop]: Abstraction has 17067 states and 79776 transitions. [2021-10-07 15:03:52,649 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) [2021-10-07 15:03:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 17067 states and 79776 transitions. [2021-10-07 15:03:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:03:52,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:52,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:52,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-07 15:03:52,652 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:52,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1307424790, now seen corresponding path program 1 times [2021-10-07 15:03:52,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:52,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805333239] [2021-10-07 15:03:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:52,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:52,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:52,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805333239] [2021-10-07 15:03:52,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805333239] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:52,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:52,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:03:52,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19250908] [2021-10-07 15:03:52,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:03:52,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:52,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:03:52,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:03:52,690 INFO L87 Difference]: Start difference. First operand 17067 states and 79776 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2021-10-07 15:03:53,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:53,328 INFO L93 Difference]: Finished difference Result 26641 states and 124778 transitions. [2021-10-07 15:03:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:03:53,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2021-10-07 15:03:53,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:53,584 INFO L225 Difference]: With dead ends: 26641 [2021-10-07 15:03:53,584 INFO L226 Difference]: Without dead ends: 26641 [2021-10-07 15:03:53,585 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 [2021-10-07 15:03:53,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26641 states. [2021-10-07 15:03:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26641 to 19461. [2021-10-07 15:03:54,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19461 states, 19327 states have (on average 5.081285248615926) internal successors, (98206), 19460 states have internal predecessors, (98206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19461 states to 19461 states and 98206 transitions. [2021-10-07 15:03:54,885 INFO L78 Accepts]: Start accepts. Automaton has 19461 states and 98206 transitions. Word has length 9 [2021-10-07 15:03:54,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:54,885 INFO L470 AbstractCegarLoop]: Abstraction has 19461 states and 98206 transitions. [2021-10-07 15:03:54,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2021-10-07 15:03:54,886 INFO L276 IsEmpty]: Start isEmpty. Operand 19461 states and 98206 transitions. [2021-10-07 15:03:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:03:54,887 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:54,887 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:54,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-07 15:03:54,888 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:54,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:54,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1307424945, now seen corresponding path program 1 times [2021-10-07 15:03:54,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:54,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683836914] [2021-10-07 15:03:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:54,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:54,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:54,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683836914] [2021-10-07 15:03:54,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683836914] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:54,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:54,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 15:03:54,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756585287] [2021-10-07 15:03:54,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:03:54,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:03:54,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:03:54,955 INFO L87 Difference]: Start difference. First operand 19461 states and 98206 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-07 15:03:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:55,793 INFO L93 Difference]: Finished difference Result 26951 states and 130547 transitions. [2021-10-07 15:03:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:03:55,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2021-10-07 15:03:55,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:56,063 INFO L225 Difference]: With dead ends: 26951 [2021-10-07 15:03:56,063 INFO L226 Difference]: Without dead ends: 26927 [2021-10-07 15:03:56,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:03:56,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26927 states. [2021-10-07 15:03:57,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26927 to 24535. [2021-10-07 15:03:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24535 states, 24401 states have (on average 4.983689193065858) internal successors, (121607), 24534 states have internal predecessors, (121607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24535 states to 24535 states and 121607 transitions. [2021-10-07 15:03:57,385 INFO L78 Accepts]: Start accepts. Automaton has 24535 states and 121607 transitions. Word has length 9 [2021-10-07 15:03:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:57,386 INFO L470 AbstractCegarLoop]: Abstraction has 24535 states and 121607 transitions. [2021-10-07 15:03:57,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-07 15:03:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 24535 states and 121607 transitions. [2021-10-07 15:03:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:03:57,388 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:57,388 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:57,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-07 15:03:57,389 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:03:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:57,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2083825314, now seen corresponding path program 1 times [2021-10-07 15:03:57,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:57,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681821273] [2021-10-07 15:03:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:57,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:57,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:57,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681821273] [2021-10-07 15:03:57,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681821273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:57,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:57,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:03:57,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345855024] [2021-10-07 15:03:57,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:03:57,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:03:57,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:03:57,427 INFO L87 Difference]: Start difference. First operand 24535 states and 121607 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) [2021-10-07 15:03:58,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:58,459 INFO L93 Difference]: Finished difference Result 36829 states and 183713 transitions. [2021-10-07 15:03:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:03:58,460 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 [2021-10-07 15:03:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:58,845 INFO L225 Difference]: With dead ends: 36829 [2021-10-07 15:03:58,845 INFO L226 Difference]: Without dead ends: 36829 [2021-10-07 15:03:58,845 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 [2021-10-07 15:03:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36829 states. [2021-10-07 15:04:00,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36829 to 34279. [2021-10-07 15:04:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34279 states, 34145 states have (on average 5.0944794259774495) internal successors, (173951), 34278 states have internal predecessors, (173951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:04:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34279 states to 34279 states and 173951 transitions. [2021-10-07 15:04:00,987 INFO L78 Accepts]: Start accepts. Automaton has 34279 states and 173951 transitions. Word has length 10 [2021-10-07 15:04:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:04:00,992 INFO L470 AbstractCegarLoop]: Abstraction has 34279 states and 173951 transitions. [2021-10-07 15:04:00,992 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) [2021-10-07 15:04:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 34279 states and 173951 transitions. [2021-10-07 15:04:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:04:00,994 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:04:00,994 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:04:00,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-07 15:04:00,995 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:04:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:04:00,996 INFO L82 PathProgramCache]: Analyzing trace with hash 356850818, now seen corresponding path program 1 times [2021-10-07 15:04:00,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:04:00,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190657623] [2021-10-07 15:04:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:04:00,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:04:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:04:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:04:01,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:04:01,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190657623] [2021-10-07 15:04:01,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190657623] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:04:01,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:04:01,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:04:01,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629388737] [2021-10-07 15:04:01,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:04:01,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:04:01,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:04:01,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:04:01,070 INFO L87 Difference]: Start difference. First operand 34279 states and 173951 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) [2021-10-07 15:04:02,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:04:02,058 INFO L93 Difference]: Finished difference Result 31979 states and 162671 transitions. [2021-10-07 15:04:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:04:02,059 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 [2021-10-07 15:04:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:04:02,331 INFO L225 Difference]: With dead ends: 31979 [2021-10-07 15:04:02,331 INFO L226 Difference]: Without dead ends: 31979 [2021-10-07 15:04:02,332 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:04:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31979 states. [2021-10-07 15:04:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31979 to 31979. [2021-10-07 15:04:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31979 states, 31890 states have (on average 5.101003449357165) internal successors, (162671), 31978 states have internal predecessors, (162671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:04:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31979 states to 31979 states and 162671 transitions. [2021-10-07 15:04:04,413 INFO L78 Accepts]: Start accepts. Automaton has 31979 states and 162671 transitions. Word has length 10 [2021-10-07 15:04:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:04:04,414 INFO L470 AbstractCegarLoop]: Abstraction has 31979 states and 162671 transitions. [2021-10-07 15:04:04,414 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) [2021-10-07 15:04:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 31979 states and 162671 transitions. [2021-10-07 15:04:04,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:04:04,415 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:04:04,416 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:04:04,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-07 15:04:04,416 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:04:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:04:04,417 INFO L82 PathProgramCache]: Analyzing trace with hash 356850793, now seen corresponding path program 1 times [2021-10-07 15:04:04,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:04:04,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716083358] [2021-10-07 15:04:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:04:04,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:04:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:04:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:04:04,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:04:04,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716083358] [2021-10-07 15:04:04,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716083358] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:04:04,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091660256] [2021-10-07 15:04:04,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:04:04,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:04:04,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:04:04,458 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) [2021-10-07 15:04:04,464 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 [2021-10-07 15:04:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:04:04,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:04:04,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:04:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:04:04,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091660256] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:04:04,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:04:04,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2021-10-07 15:04:04,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939976996] [2021-10-07 15:04:04,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:04:04,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:04:04,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:04:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:04:04,638 INFO L87 Difference]: Start difference. First operand 31979 states and 162671 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2021-10-07 15:04:05,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:04:05,113 INFO L93 Difference]: Finished difference Result 29483 states and 147837 transitions. [2021-10-07 15:04:05,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:04:05,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 [2021-10-07 15:04:05,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:04:05,941 INFO L225 Difference]: With dead ends: 29483 [2021-10-07 15:04:05,941 INFO L226 Difference]: Without dead ends: 29435 [2021-10-07 15:04:05,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 43.0ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:04:05,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29435 states. [2021-10-07 15:04:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29435 to 29003. [2021-10-07 15:04:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29003 states, 28914 states have (on average 5.061596458463028) internal successors, (146351), 29002 states have internal predecessors, (146351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:04:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29003 states to 29003 states and 146351 transitions. [2021-10-07 15:04:07,199 INFO L78 Accepts]: Start accepts. Automaton has 29003 states and 146351 transitions. Word has length 10 [2021-10-07 15:04:07,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:04:07,199 INFO L470 AbstractCegarLoop]: Abstraction has 29003 states and 146351 transitions. [2021-10-07 15:04:07,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2021-10-07 15:04:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand 29003 states and 146351 transitions. [2021-10-07 15:04:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:04:07,200 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:04:07,200 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:04:07,225 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 [2021-10-07 15:04:07,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-07 15:04:07,402 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2021-10-07 15:04:07,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:04:07,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1228048412, now seen corresponding path program 1 times [2021-10-07 15:04:07,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:04:07,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233656238] [2021-10-07 15:04:07,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:04:07,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:04:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:04:07,447 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:04:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:04:07,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-07 15:04:07,530 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:04:07,531 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:04:07,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:04:07,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:04:07,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-07 15:04:07,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:04:07,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-07 15:04:07,550 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:04:07,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:04:07,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:04:07 BasicIcfg [2021-10-07 15:04:07,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:04:07,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 15:04:07,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 15:04:07,636 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 15:04:07,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:28" (3/4) ... [2021-10-07 15:04:07,639 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-07 15:04:07,716 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-min-max-inc.wvr.c-witness.graphml [2021-10-07 15:04:07,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 15:04:07,718 INFO L168 Benchmark]: Toolchain (without parser) took 40725.78 ms. Allocated memory was 161.5 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 136.5 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,719 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 161.5 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:04:07,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.06 ms. Allocated memory is still 161.5 MB. Free memory was 136.2 MB in the beginning and 125.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.05 ms. Allocated memory is still 161.5 MB. Free memory was 125.1 MB in the beginning and 123.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,720 INFO L168 Benchmark]: Boogie Preprocessor took 47.94 ms. Allocated memory is still 161.5 MB. Free memory was 123.4 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,721 INFO L168 Benchmark]: RCFGBuilder took 1042.93 ms. Allocated memory is still 161.5 MB. Free memory was 121.7 MB in the beginning and 138.8 MB in the end (delta: -17.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,722 INFO L168 Benchmark]: TraceAbstraction took 39165.10 ms. Allocated memory was 161.5 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 138.2 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,722 INFO L168 Benchmark]: Witness Printer took 80.16 ms. Allocated memory is still 7.2 GB. Free memory was 5.2 GB in the beginning and 5.2 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-10-07 15:04:07,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 161.5 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 324.06 ms. Allocated memory is still 161.5 MB. Free memory was 136.2 MB in the beginning and 125.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.05 ms. Allocated memory is still 161.5 MB. Free memory was 125.1 MB in the beginning and 123.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.94 ms. Allocated memory is still 161.5 MB. Free memory was 123.4 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1042.93 ms. Allocated memory is still 161.5 MB. Free memory was 121.7 MB in the beginning and 138.8 MB in the end (delta: -17.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 39165.10 ms. Allocated memory was 161.5 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 138.2 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. * Witness Printer took 80.16 ms. Allocated memory is still 7.2 GB. Free memory was 5.2 GB in the beginning and 5.2 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9148.0ms, 199 PlacesBefore, 67 PlacesAfterwards, 200 TransitionsBefore, 61 TransitionsAfterwards, 7740 CoEnabledTransitionPairs, 7 FixpointIterations, 76 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 19 ConcurrentYvCompositions, 7 ChoiceCompositions, 183 TotalNumberOfCompositions, 16800 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10613, positive: 10349, positive conditional: 0, positive unconditional: 10349, negative: 264, negative conditional: 0, negative unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5416, positive: 5343, positive conditional: 0, positive unconditional: 5343, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5416, positive: 5329, positive conditional: 0, positive unconditional: 5329, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 212, negative conditional: 0, negative unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10613, positive: 5006, positive conditional: 0, positive unconditional: 5006, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 5416, unknown conditional: 0, unknown unconditional: 5416] , Statistics on independence cache: Total cache size (in pairs): 637, Positive cache size: 608, Positive conditional cache size: 0, Positive unconditional cache size: 608, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - 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 - CounterExampleResult [Line: 70]: integer overflow possible integer overflow possible We found a FailurePath: [L41] 0 int* A; [L42] 0 int min, max, N; [L43] 0 _Bool v_assert, b1, b2; [L84] 0 pthread_t t1, t2, t3, t4; [L86] 0 N = __VERIFIER_nondet_int() [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L109] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L110] 0 int i = 0; VAL [A={0:0}, b1=0, b2=0, max=0, min=0, N=1, v_assert=0] [L110] COND TRUE 0 i < size [L111] 0 arr[i] = __VERIFIER_nondet_int() [L110] 0 i++ VAL [A={0:0}, b1=0, b2=0, max=0, min=0, N=1, v_assert=0] [L110] COND FALSE 0 !(i < size) [L113] 0 return arr; [L87] 0 A = create_fresh_int_array(N) [L90] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [A={3:0}, b1=0, b2=0, max=0, min=0, N=1, v_assert=0] [L91] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [A={3:0}, b1=0, b2=0, max=0, min=0, N=1, v_assert=0] [L92] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [A={3:0}, b1=0, b2=0, max=0, min=0, N=1, v_assert=0] [L68] 3 int i=0; VAL [A={3:0}, b1=0, b2=0, i=0, max=0, min=0, N=1, v_assert=0] [L68] COND TRUE 3 i