/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-min-max-inc-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:02:17,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:02:17,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:02:17,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:02:17,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:02:17,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:02:17,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:02:17,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:02:17,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:02:17,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:02:17,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:02:17,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:02:17,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:02:17,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:02:17,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:02:17,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:02:17,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:02:17,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:02:17,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:02:17,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:02:17,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:02:17,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:02:17,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:02:17,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:02:17,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:02:17,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:02:17,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:02:17,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:02:17,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:02:17,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:02:17,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:02:17,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:02:17,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:02:17,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:02:17,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:02:17,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:02:17,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:02:17,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:02:17,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:02:17,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:02:17,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:02:17,369 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 11:02:17,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:02:17,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:02:17,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:02:17,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:02:17,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:02:17,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:02:17,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:02:17,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:02:17,405 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:02:17,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:02:17,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:02:17,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:02:17,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:02:17,408 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:02:17,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:02:17,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:02:17,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:02:17,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:02:17,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:02:17,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:02:17,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:02:17,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:02:17,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:02:17,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:02:17,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:02:17,410 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:02:17,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:02:17,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:02:17,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:02:17,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:02:17,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:02:17,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:02:17,667 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:02:17,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2022-09-16 11:02:17,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c447722c/e14546062bcd4c3eab0be9dad1b67ec3/FLAG54c2c729f [2022-09-16 11:02:18,091 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:02:18,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2022-09-16 11:02:18,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c447722c/e14546062bcd4c3eab0be9dad1b67ec3/FLAG54c2c729f [2022-09-16 11:02:18,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c447722c/e14546062bcd4c3eab0be9dad1b67ec3 [2022-09-16 11:02:18,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:02:18,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:02:18,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:02:18,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:02:18,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:02:18,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3337fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18, skipping insertion in model container [2022-09-16 11:02:18,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:02:18,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:02:18,803 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-min-max-inc-dec.wvr.c[3271,3284] [2022-09-16 11:02:18,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:02:18,812 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:02:18,832 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-min-max-inc-dec.wvr.c[3271,3284] [2022-09-16 11:02:18,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:02:18,845 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:02:18,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18 WrapperNode [2022-09-16 11:02:18,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:02:18,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:02:18,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:02:18,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:02:18,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,884 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 184 [2022-09-16 11:02:18,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:02:18,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:02:18,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:02:18,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:02:18,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:02:18,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:02:18,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:02:18,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:02:18,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (1/1) ... [2022-09-16 11:02:18,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:02:18,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:02:18,956 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 11:02:18,975 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 11:02:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:02:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:02:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:02:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:02:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:02:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:02:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:02:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:02:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:02:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:02:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 11:02:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 11:02:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:02:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-09-16 11:02:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-09-16 11:02:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:02:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:02:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:02:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:02:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:02:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:02:18,990 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 11:02:19,083 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:02:19,085 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:02:19,416 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:02:19,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:02:19,563 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-09-16 11:02:19,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:02:19 BoogieIcfgContainer [2022-09-16 11:02:19,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:02:19,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:02:19,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:02:19,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:02:19,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:02:18" (1/3) ... [2022-09-16 11:02:19,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab1964a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:02:19, skipping insertion in model container [2022-09-16 11:02:19,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:02:18" (2/3) ... [2022-09-16 11:02:19,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab1964a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:02:19, skipping insertion in model container [2022-09-16 11:02:19,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:02:19" (3/3) ... [2022-09-16 11:02:19,581 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-09-16 11:02:19,590 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:02:19,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:02:19,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-09-16 11:02:19,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:02:19,705 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-09-16 11:02:19,755 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 222 places, 220 transitions, 480 flow [2022-09-16 11:03:35,750 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1604273 states, 1603597 states have (on average 5.681524098635754) internal successors, (9110875), 1604272 states have internal predecessors, (9110875), 0 states have call successors, (0), 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 11:03:35,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:03:35,789 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;@6f421414, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:03:35,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-09-16 11:03:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 1604273 states, 1603597 states have (on average 5.681524098635754) internal successors, (9110875), 1604272 states have internal predecessors, (9110875), 0 states have call successors, (0), 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 11:03:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 11:03:48,253 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:03:48,253 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] [2022-09-16 11:03:48,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-09-16 11:03:48,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:03:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2134018356, now seen corresponding path program 1 times [2022-09-16 11:03:48,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:03:48,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608369512] [2022-09-16 11:03:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:03:48,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:03:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:03:48,725 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 11:03:48,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:03:48,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608369512] [2022-09-16 11:03:48,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608369512] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:03:48,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:03:48,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:03:48,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116602204] [2022-09-16 11:03:48,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:03:48,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:03:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:03:48,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:03:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:03:55,225 INFO L87 Difference]: Start difference. First operand has 1604273 states, 1603597 states have (on average 5.681524098635754) internal successors, (9110875), 1604272 states have internal predecessors, (9110875), 0 states have call successors, (0), 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 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)