/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/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 11:56:12,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 11:56:12,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 11:56:12,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 11:56:12,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 11:56:12,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 11:56:12,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 11:56:12,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 11:56:12,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 11:56:12,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 11:56:12,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 11:56:12,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 11:56:12,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 11:56:12,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 11:56:12,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 11:56:12,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 11:56:12,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 11:56:12,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 11:56:12,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 11:56:12,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 11:56:12,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 11:56:12,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 11:56:12,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 11:56:12,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 11:56:12,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 11:56:12,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-28 11:56:12,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-28 11:56:12,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-28 11:56:12,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-28 11:56:12,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-28 11:56:12,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-28 11:56:12,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-28 11:56:12,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-28 11:56:12,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 11:56:12,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 11:56:12,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 11:56:12,736 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 [2022-01-28 11:56:12,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 11:56:12,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 11:56:12,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 11:56:12,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 11:56:12,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 11:56:12,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 11:56:12,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 11:56:12,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 11:56:12,756 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 11:56:12,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 11:56:12,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 11:56:12,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 11:56:12,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 11:56:12,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 11:56:12,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 11:56:12,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 11:56:12,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 11:56:12,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 11:56:12,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 11:56:12,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 11:56:12,962 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 11:56:12,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2022-01-28 11:56:13,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8eec649/4f030f5fd28f4437bf5f7279207ddb0a/FLAG53f192add [2022-01-28 11:56:13,390 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 11:56:13,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-01-28 11:56:13,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8eec649/4f030f5fd28f4437bf5f7279207ddb0a/FLAG53f192add [2022-01-28 11:56:13,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8eec649/4f030f5fd28f4437bf5f7279207ddb0a [2022-01-28 11:56:13,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 11:56:13,419 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 11:56:13,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 11:56:13,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 11:56:13,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 11:56:13,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e430e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13, skipping insertion in model container [2022-01-28 11:56:13,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 11:56:13,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 11:56:13,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2022-01-28 11:56:13,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 11:56:13,775 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 11:56:13,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2022-01-28 11:56:13,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 11:56:13,861 INFO L208 MainTranslator]: Completed translation [2022-01-28 11:56:13,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13 WrapperNode [2022-01-28 11:56:13,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 11:56:13,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 11:56:13,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 11:56:13,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 11:56:13,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,912 INFO L137 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-01-28 11:56:13,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 11:56:13,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 11:56:13,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 11:56:13,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 11:56:13,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 11:56:13,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 11:56:13,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 11:56:13,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 11:56:13,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (1/1) ... [2022-01-28 11:56:13,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 11:56:13,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 11:56:13,974 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) [2022-01-28 11:56:13,979 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 [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 11:56:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 11:56:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 11:56:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 11:56:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 11:56:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 11:56:14,001 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 11:56:14,102 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 11:56:14,103 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 11:56:14,223 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 11:56:14,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 11:56:14,228 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-28 11:56:14,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:56:14 BoogieIcfgContainer [2022-01-28 11:56:14,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 11:56:14,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 11:56:14,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 11:56:14,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 11:56:14,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 11:56:13" (1/3) ... [2022-01-28 11:56:14,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e651d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:56:14, skipping insertion in model container [2022-01-28 11:56:14,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:56:13" (2/3) ... [2022-01-28 11:56:14,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e651d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:56:14, skipping insertion in model container [2022-01-28 11:56:14,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:56:14" (3/3) ... [2022-01-28 11:56:14,235 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-01-28 11:56:14,239 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 11:56:14,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 11:56:14,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 11:56:14,239 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 11:56:14,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,279 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,284 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,292 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,293 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,297 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,297 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 11:56:14,306 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-28 11:56:14,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 11:56:14,357 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, 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 [2022-01-28 11:56:14,357 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-28 11:56:14,368 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 107 transitions, 230 flow [2022-01-28 11:56:14,431 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 962 states, 961 states have (on average 2.685744016649324) internal successors, (2581), 961 states have internal predecessors, (2581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 962 states, 961 states have (on average 2.685744016649324) internal successors, (2581), 961 states have internal predecessors, (2581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-28 11:56:14,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 11:56:14,458 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, 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] [2022-01-28 11:56:14,459 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 11:56:14,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 11:56:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1533363640, now seen corresponding path program 1 times [2022-01-28 11:56:14,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 11:56:14,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216261692] [2022-01-28 11:56:14,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 11:56:14,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 11:56:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 11:56:14,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 11:56:14,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 11:56:14,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216261692] [2022-01-28 11:56:14,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216261692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 11:56:14,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 11:56:14,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 11:56:14,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491474395] [2022-01-28 11:56:14,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 11:56:14,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 11:56:14,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 11:56:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 11:56:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 11:56:14,773 INFO L87 Difference]: Start difference. First operand has 962 states, 961 states have (on average 2.685744016649324) internal successors, (2581), 961 states have internal predecessors, (2581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:14,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 11:56:14,851 INFO L93 Difference]: Finished difference Result 706 states and 1564 transitions. [2022-01-28 11:56:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 11:56:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-28 11:56:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 11:56:14,873 INFO L225 Difference]: With dead ends: 706 [2022-01-28 11:56:14,874 INFO L226 Difference]: Without dead ends: 706 [2022-01-28 11:56:14,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 11:56:14,877 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 31 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 11:56:14,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 159 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 11:56:14,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-01-28 11:56:14,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2022-01-28 11:56:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 705 states have (on average 2.218439716312057) internal successors, (1564), 705 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1564 transitions. [2022-01-28 11:56:14,945 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1564 transitions. Word has length 84 [2022-01-28 11:56:14,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 11:56:14,945 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 1564 transitions. [2022-01-28 11:56:14,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1564 transitions. [2022-01-28 11:56:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-28 11:56:14,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 11:56:14,949 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, 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] [2022-01-28 11:56:14,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 11:56:14,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 11:56:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 11:56:14,950 INFO L85 PathProgramCache]: Analyzing trace with hash 794632890, now seen corresponding path program 1 times [2022-01-28 11:56:14,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 11:56:14,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098567185] [2022-01-28 11:56:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 11:56:14,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 11:56:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 11:56:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 11:56:15,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 11:56:15,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098567185] [2022-01-28 11:56:15,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098567185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 11:56:15,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 11:56:15,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 11:56:15,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132927847] [2022-01-28 11:56:15,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 11:56:15,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 11:56:15,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 11:56:15,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 11:56:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-28 11:56:15,124 INFO L87 Difference]: Start difference. First operand 706 states and 1564 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 11:56:15,207 INFO L93 Difference]: Finished difference Result 385 states and 802 transitions. [2022-01-28 11:56:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-28 11:56:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-28 11:56:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 11:56:15,208 INFO L225 Difference]: With dead ends: 385 [2022-01-28 11:56:15,208 INFO L226 Difference]: Without dead ends: 0 [2022-01-28 11:56:15,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-28 11:56:15,209 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 157 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 11:56:15,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 372 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 11:56:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-28 11:56:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-28 11:56:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:15,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-28 11:56:15,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2022-01-28 11:56:15,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 11:56:15,210 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-28 11:56:15,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 11:56:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-28 11:56:15,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-28 11:56:15,213 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-28 11:56:15,213 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-28 11:56:15,213 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-28 11:56:15,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 11:56:15,215 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-28 11:56:15,216 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 11:56:15,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 11:56:15,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 11:56:15 BasicIcfg [2022-01-28 11:56:15,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 11:56:15,219 INFO L158 Benchmark]: Toolchain (without parser) took 1799.61ms. Allocated memory was 202.4MB in the beginning and 300.9MB in the end (delta: 98.6MB). Free memory was 145.1MB in the beginning and 161.9MB in the end (delta: -16.8MB). Peak memory consumption was 82.2MB. Max. memory is 8.0GB. [2022-01-28 11:56:15,219 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 163.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 11:56:15,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.03ms. Allocated memory was 202.4MB in the beginning and 300.9MB in the end (delta: 98.6MB). Free memory was 144.8MB in the beginning and 255.2MB in the end (delta: -110.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-28 11:56:15,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.55ms. Allocated memory is still 300.9MB. Free memory was 255.2MB in the beginning and 253.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 11:56:15,220 INFO L158 Benchmark]: Boogie Preprocessor took 32.32ms. Allocated memory is still 300.9MB. Free memory was 253.1MB in the beginning and 251.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 11:56:15,221 INFO L158 Benchmark]: RCFGBuilder took 283.71ms. Allocated memory is still 300.9MB. Free memory was 251.6MB in the beginning and 236.4MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-28 11:56:15,221 INFO L158 Benchmark]: TraceAbstraction took 988.09ms. Allocated memory is still 300.9MB. Free memory was 235.8MB in the beginning and 161.9MB in the end (delta: 73.9MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2022-01-28 11:56:15,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 163.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 440.03ms. Allocated memory was 202.4MB in the beginning and 300.9MB in the end (delta: 98.6MB). Free memory was 144.8MB in the beginning and 255.2MB in the end (delta: -110.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.55ms. Allocated memory is still 300.9MB. Free memory was 255.2MB in the beginning and 253.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.32ms. Allocated memory is still 300.9MB. Free memory was 253.1MB in the beginning and 251.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 283.71ms. Allocated memory is still 300.9MB. Free memory was 251.6MB in the beginning and 236.4MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 988.09ms. Allocated memory is still 300.9MB. Free memory was 235.8MB in the beginning and 161.9MB in the end (delta: 73.9MB). Peak memory consumption was 74.4MB. 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 - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 133 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 531 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 348 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 197 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=962occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 266 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-28 11:56:15,252 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...