/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-bad-commit-2.wvr-bad.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:57:34,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:57:34,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:57:34,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:57:34,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:57:34,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:57:34,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:57:34,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:57:34,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:57:34,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:57:34,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:57:34,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:57:34,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:57:34,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:57:34,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:57:34,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:57:34,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:57:34,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:57:34,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:57:34,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:57:34,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:57:34,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:57:34,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:57:34,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:57:34,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:57:34,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:57:34,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:57:34,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:57:34,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:57:34,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:57:34,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:57:34,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:57:34,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:57:34,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:57:34,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:57:34,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:57:34,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:57:34,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:57:34,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:57:34,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:57:34,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:57:34,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:57:34,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:57:34,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:57:34,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:57:34,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:57:34,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:57:34,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:57:34,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:57:34,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:57:34,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:57:34,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:57:34,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:57:34,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:57:34,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:57:34,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:57:34,694 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:57:34,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:57:34,694 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:57:34,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:57:34,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:57:34,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:57:34,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:57:34,958 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:57:34,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-commit-2.wvr-bad.c [2022-09-16 10:57:35,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61eae4cce/22d6a383159c456fae2ae8ea659aace4/FLAGddd778b99 [2022-09-16 10:57:35,385 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:57:35,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-2.wvr-bad.c [2022-09-16 10:57:35,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61eae4cce/22d6a383159c456fae2ae8ea659aace4/FLAGddd778b99 [2022-09-16 10:57:35,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61eae4cce/22d6a383159c456fae2ae8ea659aace4 [2022-09-16 10:57:35,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:57:35,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:57:35,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:57:35,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:57:35,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:57:35,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130c09d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35, skipping insertion in model container [2022-09-16 10:57:35,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:57:35,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:57:35,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-09-16 10:57:35,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:57:35,628 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:57:35,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-09-16 10:57:35,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:57:35,673 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:57:35,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35 WrapperNode [2022-09-16 10:57:35,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:57:35,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:57:35,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:57:35,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:57:35,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,711 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 492 [2022-09-16 10:57:35,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:57:35,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:57:35,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:57:35,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:57:35,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:57:35,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:57:35,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:57:35,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:57:35,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (1/1) ... [2022-09-16 10:57:35,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:57:35,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:35,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:57:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:57:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:57:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:57:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 10:57:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 10:57:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:57:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:57:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:57:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:57:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:57:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:57:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:57:35,804 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:57:35,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:57:35,891 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:57:35,892 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:57:36,365 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:57:36,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:57:36,577 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-09-16 10:57:36,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:57:36 BoogieIcfgContainer [2022-09-16 10:57:36,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:57:36,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:57:36,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:57:36,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:57:36,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:57:35" (1/3) ... [2022-09-16 10:57:36,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2552e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:57:36, skipping insertion in model container [2022-09-16 10:57:36,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:35" (2/3) ... [2022-09-16 10:57:36,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2552e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:57:36, skipping insertion in model container [2022-09-16 10:57:36,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:57:36" (3/3) ... [2022-09-16 10:57:36,587 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-09-16 10:57:36,592 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:57:36,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:57:36,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-09-16 10:57:36,598 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:57:36,708 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 10:57:36,747 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 371 places, 395 transitions, 822 flow [2022-09-16 10:57:49,320 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 375080 states, 373448 states have (on average 5.515461322593775) internal successors, (2059738), 375079 states have internal predecessors, (2059738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:57:49,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:57:49,387 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ef3d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:57:49,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-09-16 10:57:50,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 375080 states, 373448 states have (on average 5.515461322593775) internal successors, (2059738), 375079 states have internal predecessors, (2059738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:57:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-09-16 10:57:50,245 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:50,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:57:50,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:50,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash -206792586, now seen corresponding path program 1 times [2022-09-16 10:57:50,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:50,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922000667] [2022-09-16 10:57:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:50,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:57:50,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:50,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922000667] [2022-09-16 10:57:50,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922000667] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:50,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:50,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:57:50,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480190146] [2022-09-16 10:57:50,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:50,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:57:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:57:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:57:51,302 INFO L87 Difference]: Start difference. First operand has 375080 states, 373448 states have (on average 5.515461322593775) internal successors, (2059738), 375079 states have internal predecessors, (2059738), 0 states have call successors, (0), 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 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:57:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:59,843 INFO L93 Difference]: Finished difference Result 386077 states and 2065737 transitions. [2022-09-16 10:57:59,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:57:59,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-09-16 10:57:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:06,035 INFO L225 Difference]: With dead ends: 386077 [2022-09-16 10:58:06,035 INFO L226 Difference]: Without dead ends: 386069 [2022-09-16 10:58:06,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:58:06,045 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 198 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:06,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 827 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:07,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386069 states. [2022-09-16 10:58:23,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386069 to 193126. [2022-09-16 10:58:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193126 states, 192930 states have (on average 5.354066241642046) internal successors, (1032960), 193125 states have internal predecessors, (1032960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193126 states to 193126 states and 1032960 transitions. [2022-09-16 10:58:27,215 INFO L78 Accepts]: Start accepts. Automaton has 193126 states and 1032960 transitions. Word has length 74 [2022-09-16 10:58:27,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:27,216 INFO L495 AbstractCegarLoop]: Abstraction has 193126 states and 1032960 transitions. [2022-09-16 10:58:27,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:27,217 INFO L276 IsEmpty]: Start isEmpty. Operand 193126 states and 1032960 transitions. [2022-09-16 10:58:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-09-16 10:58:27,230 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:27,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:27,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:58:27,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2017743730, now seen corresponding path program 1 times [2022-09-16 10:58:27,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:27,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044225999] [2022-09-16 10:58:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:27,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:27,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:27,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044225999] [2022-09-16 10:58:27,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044225999] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:27,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86445178] [2022-09-16 10:58:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:27,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:27,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:27,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:58:27,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:58:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:27,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:58:27,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:27,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:27,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86445178] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:27,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:27,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:58:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126247622] [2022-09-16 10:58:27,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:27,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:58:27,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:27,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:58:27,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:58:27,813 INFO L87 Difference]: Start difference. First operand 193126 states and 1032960 transitions. Second operand has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)