/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 -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 13:01:17,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 13:01:17,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 13:01:17,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 13:01:17,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 13:01:17,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 13:01:17,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 13:01:17,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 13:01:17,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 13:01:17,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 13:01:17,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 13:01:17,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 13:01:17,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 13:01:17,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 13:01:17,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 13:01:17,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 13:01:17,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 13:01:17,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 13:01:17,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 13:01:17,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 13:01:17,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 13:01:17,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 13:01:17,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 13:01:17,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 13:01:17,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 13:01:17,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 13:01:17,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 13:01:17,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 13:01:17,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 13:01:17,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 13:01:17,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 13:01:17,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 13:01:17,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 13:01:17,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 13:01:17,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 13:01:17,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 13:01:17,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 13:01:17,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 13:01:17,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 13:01:17,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 13:01:17,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 13:01:17,658 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 [2022-02-15 13:01:17,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 13:01:17,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 13:01:17,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 13:01:17,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 13:01:17,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 13:01:17,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 13:01:17,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 13:01:17,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 13:01:17,678 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 13:01:17,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 13:01:17,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 13:01:17,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 13:01:17,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 13:01:17,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 13:01:17,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 13:01:17,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 13:01:17,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 13:01:17,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 13:01:17,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 13:01:17,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 13:01:17,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 13:01:17,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 13:01:17,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 13:01:17,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 13:01:17,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 13:01:17,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 13:01:17,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 13:01:17,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 13:01:17,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 13:01:17,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 13:01:17,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 13:01:17,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 13:01:17,928 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 13:01:17,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-02-15 13:01:17,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7e52333/4ecc5e69d9b64270a167d81c288bab0a/FLAG2d7c0f549 [2022-02-15 13:01:18,351 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 13:01:18,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-02-15 13:01:18,351 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-15 13:01:18,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7e52333/4ecc5e69d9b64270a167d81c288bab0a/FLAG2d7c0f549 [2022-02-15 13:01:18,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7e52333/4ecc5e69d9b64270a167d81c288bab0a [2022-02-15 13:01:18,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 13:01:18,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 13:01:18,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 13:01:18,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 13:01:18,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 13:01:18,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591baae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18, skipping insertion in model container [2022-02-15 13:01:18,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 13:01:18,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 13:01:18,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 13:01:18,612 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 13:01:18,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 13:01:18,645 INFO L208 MainTranslator]: Completed translation [2022-02-15 13:01:18,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18 WrapperNode [2022-02-15 13:01:18,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 13:01:18,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 13:01:18,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 13:01:18,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 13:01:18,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,676 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-02-15 13:01:18,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 13:01:18,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 13:01:18,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 13:01:18,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 13:01:18,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 13:01:18,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 13:01:18,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 13:01:18,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 13:01:18,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (1/1) ... [2022-02-15 13:01:18,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 13:01:18,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 13:01:18,728 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) [2022-02-15 13:01:18,753 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 [2022-02-15 13:01:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 13:01:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-15 13:01:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-15 13:01:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-15 13:01:18,766 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-15 13:01:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 13:01:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 13:01:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 13:01:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 13:01:18,768 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 13:01:18,827 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 13:01:18,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 13:01:18,899 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 13:01:18,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 13:01:18,904 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-15 13:01:18,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:01:18 BoogieIcfgContainer [2022-02-15 13:01:18,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 13:01:18,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 13:01:18,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 13:01:18,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 13:01:18,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:01:18" (1/3) ... [2022-02-15 13:01:18,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7238ccc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:01:18, skipping insertion in model container [2022-02-15 13:01:18,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:01:18" (2/3) ... [2022-02-15 13:01:18,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7238ccc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:01:18, skipping insertion in model container [2022-02-15 13:01:18,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:01:18" (3/3) ... [2022-02-15 13:01:18,912 INFO L111 eAbstractionObserver]: Analyzing ICFG 11b-double-end.c [2022-02-15 13:01:18,915 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 13:01:18,915 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 13:01:18,916 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 13:01:18,916 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 13:01:18,933 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,934 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,934 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,934 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,935 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,935 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,935 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,935 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,935 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,936 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,936 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,936 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,939 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,939 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,939 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,939 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 13:01:18,941 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-15 13:01:18,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 13:01:19,005 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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 [2022-02-15 13:01:19,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-15 13:01:19,013 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 65 flow [2022-02-15 13:01:19,044 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-15 13:01:19,051 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 13:01:19,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 13:01:19,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-15 13:01:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 13:01:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash -498706984, now seen corresponding path program 1 times [2022-02-15 13:01:19,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 13:01:19,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900529983] [2022-02-15 13:01:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 13:01:19,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 13:01:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 13:01:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 13:01:19,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 13:01:19,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900529983] [2022-02-15 13:01:19,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900529983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 13:01:19,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 13:01:19,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 13:01:19,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107542598] [2022-02-15 13:01:19,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 13:01:19,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 13:01:19,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 13:01:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 13:01:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-15 13:01:19,297 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 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 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 13:01:19,350 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2022-02-15 13:01:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 13:01:19,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-02-15 13:01:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 13:01:19,358 INFO L225 Difference]: With dead ends: 48 [2022-02-15 13:01:19,359 INFO L226 Difference]: Without dead ends: 33 [2022-02-15 13:01:19,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-15 13:01:19,365 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 13:01:19,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 66 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 13:01:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-02-15 13:01:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-02-15 13:01:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-02-15 13:01:19,399 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 19 [2022-02-15 13:01:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 13:01:19,400 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-02-15 13:01:19,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-02-15 13:01:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-15 13:01:19,403 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 13:01:19,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 13:01:19,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 13:01:19,405 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-15 13:01:19,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 13:01:19,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1262018775, now seen corresponding path program 1 times [2022-02-15 13:01:19,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 13:01:19,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5447994] [2022-02-15 13:01:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 13:01:19,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 13:01:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 13:01:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 13:01:19,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 13:01:19,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5447994] [2022-02-15 13:01:19,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5447994] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 13:01:19,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 13:01:19,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-15 13:01:19,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062932851] [2022-02-15 13:01:19,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 13:01:19,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 13:01:19,458 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 13:01:19,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 13:01:19,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 13:01:19,458 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 13:01:19,474 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-02-15 13:01:19,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 13:01:19,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-02-15 13:01:19,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 13:01:19,475 INFO L225 Difference]: With dead ends: 36 [2022-02-15 13:01:19,475 INFO L226 Difference]: Without dead ends: 31 [2022-02-15 13:01:19,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 13:01:19,477 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 13:01:19,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 13:01:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-02-15 13:01:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-02-15 13:01:19,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-02-15 13:01:19,482 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 21 [2022-02-15 13:01:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 13:01:19,483 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-02-15 13:01:19,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 13:01:19,483 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-02-15 13:01:19,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-15 13:01:19,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 13:01:19,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 13:01:19,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 13:01:19,484 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-15 13:01:19,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 13:01:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1262015055, now seen corresponding path program 2 times [2022-02-15 13:01:19,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 13:01:19,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401900168] [2022-02-15 13:01:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 13:01:19,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 13:01:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 13:01:19,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-15 13:01:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 13:01:19,527 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-15 13:01:19,528 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-15 13:01:19,529 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-15 13:01:19,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-15 13:01:19,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 13:01:19,533 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-02-15 13:01:19,536 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 13:01:19,536 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 13:01:19,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:01:19 BasicIcfg [2022-02-15 13:01:19,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 13:01:19,563 INFO L158 Benchmark]: Toolchain (without parser) took 1165.84ms. Allocated memory was 180.4MB in the beginning and 251.7MB in the end (delta: 71.3MB). Free memory was 124.2MB in the beginning and 178.1MB in the end (delta: -53.9MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2022-02-15 13:01:19,564 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 13:01:19,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.40ms. Allocated memory was 180.4MB in the beginning and 251.7MB in the end (delta: 71.3MB). Free memory was 124.0MB in the beginning and 224.8MB in the end (delta: -100.8MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-02-15 13:01:19,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.69ms. Allocated memory is still 251.7MB. Free memory was 224.8MB in the beginning and 223.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 13:01:19,565 INFO L158 Benchmark]: Boogie Preprocessor took 18.48ms. Allocated memory is still 251.7MB. Free memory was 223.7MB in the beginning and 222.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 13:01:19,565 INFO L158 Benchmark]: RCFGBuilder took 207.53ms. Allocated memory is still 251.7MB. Free memory was 222.7MB in the beginning and 212.2MB in the end (delta: 10.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-15 13:01:19,566 INFO L158 Benchmark]: TraceAbstraction took 655.85ms. Allocated memory is still 251.7MB. Free memory was 211.7MB in the beginning and 178.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-02-15 13:01:19,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 250.40ms. Allocated memory was 180.4MB in the beginning and 251.7MB in the end (delta: 71.3MB). Free memory was 124.0MB in the beginning and 224.8MB in the end (delta: -100.8MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.69ms. Allocated memory is still 251.7MB. Free memory was 224.8MB in the beginning and 223.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.48ms. Allocated memory is still 251.7MB. Free memory was 223.7MB in the beginning and 222.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 207.53ms. Allocated memory is still 251.7MB. Free memory was 222.7MB in the beginning and 212.2MB in the end (delta: 10.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 655.85ms. Allocated memory is still 251.7MB. Free memory was 211.7MB in the beginning and 178.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 32]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=-1] [L27] 0 x = 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L29] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] [L32] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 51 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-15 13:01:19,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...