/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 12:33:27,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 12:33:27,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 12:33:27,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 12:33:27,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 12:33:27,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 12:33:27,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 12:33:27,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 12:33:27,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 12:33:27,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 12:33:27,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 12:33:27,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 12:33:27,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 12:33:27,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 12:33:27,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 12:33:27,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 12:33:27,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 12:33:27,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 12:33:27,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 12:33:27,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 12:33:27,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 12:33:27,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 12:33:27,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 12:33:27,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 12:33:27,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 12:33:27,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 12:33:27,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 12:33:27,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 12:33:27,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 12:33:27,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 12:33:27,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 12:33:27,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 12:33:27,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 12:33:27,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 12:33:27,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 12:33:27,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 12:33:27,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 12:33:27,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 12:33:27,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 12:33:27,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 12:33:27,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 12:33:27,997 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-16 12:33:28,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 12:33:28,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 12:33:28,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 12:33:28,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 12:33:28,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 12:33:28,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 12:33:28,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 12:33:28,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 12:33:28,023 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 12:33:28,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 12:33:28,023 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 12:33:28,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 12:33:28,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 12:33:28,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 12:33:28,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:33:28,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 12:33:28,025 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 12:33:28,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 12:33:28,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 12:33:28,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 12:33:28,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 12:33:28,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 12:33:28,252 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 12:33:28,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-02-16 12:33:28,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2c310031/dd0fd107e4fa4e108e6cf8ac318cae2d/FLAG00ac316dd [2022-02-16 12:33:28,720 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 12:33:28,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-02-16 12:33:28,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2c310031/dd0fd107e4fa4e108e6cf8ac318cae2d/FLAG00ac316dd [2022-02-16 12:33:29,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2c310031/dd0fd107e4fa4e108e6cf8ac318cae2d [2022-02-16 12:33:29,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 12:33:29,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 12:33:29,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 12:33:29,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 12:33:29,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 12:33:29,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d446e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29, skipping insertion in model container [2022-02-16 12:33:29,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 12:33:29,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 12:33:29,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-02-16 12:33:29,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:33:29,414 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 12:33:29,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-02-16 12:33:29,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:33:29,478 INFO L208 MainTranslator]: Completed translation [2022-02-16 12:33:29,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29 WrapperNode [2022-02-16 12:33:29,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 12:33:29,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 12:33:29,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 12:33:29,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 12:33:29,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,506 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-02-16 12:33:29,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 12:33:29,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 12:33:29,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 12:33:29,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 12:33:29,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 12:33:29,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 12:33:29,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 12:33:29,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 12:33:29,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (1/1) ... [2022-02-16 12:33:29,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:33:29,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 12:33:29,543 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) [2022-02-16 12:33:29,560 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 [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-16 12:33:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 12:33:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 12:33:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 12:33:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 12:33:29,572 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 12:33:29,640 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 12:33:29,642 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 12:33:29,745 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 12:33:29,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 12:33:29,750 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 12:33:29,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:33:29 BoogieIcfgContainer [2022-02-16 12:33:29,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 12:33:29,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 12:33:29,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 12:33:29,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 12:33:29,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:33:29" (1/3) ... [2022-02-16 12:33:29,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279f398f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:33:29, skipping insertion in model container [2022-02-16 12:33:29,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:29" (2/3) ... [2022-02-16 12:33:29,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279f398f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:33:29, skipping insertion in model container [2022-02-16 12:33:29,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:33:29" (3/3) ... [2022-02-16 12:33:29,757 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-02-16 12:33:29,761 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 12:33:29,761 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 12:33:29,761 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 12:33:29,762 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 12:33:29,782 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,782 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,782 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,783 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,783 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,789 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,789 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:29,791 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-16 12:33:29,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 12:33:29,844 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 [2022-02-16 12:33:29,844 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 12:33:29,864 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 67 transitions, 139 flow [2022-02-16 12:33:29,906 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 200 states, 199 states have (on average 1.7185929648241205) internal successors, (342), 199 states have internal predecessors, (342), 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) [2022-02-16 12:33:30,171 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3539 transitions and produced 2111 states. [2022-02-16 12:33:30,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 2111 states, 1743 states have (on average 1.2507171543316122) internal successors, (2180), 2110 states have internal predecessors, (2180), 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) [2022-02-16 12:33:30,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-16 12:33:30,238 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:30,238 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] [2022-02-16 12:33:30,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 12:33:30,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:30,245 INFO L85 PathProgramCache]: Analyzing trace with hash 412301319, now seen corresponding path program 1 times [2022-02-16 12:33:30,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:30,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471142512] [2022-02-16 12:33:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:30,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:30,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:30,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471142512] [2022-02-16 12:33:30,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471142512] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:30,531 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:30,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-16 12:33:30,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699880184] [2022-02-16 12:33:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:30,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-16 12:33:30,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-16 12:33:30,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-16 12:33:30,568 INFO L87 Difference]: Start difference. First operand has 2111 states, 1743 states have (on average 1.2507171543316122) internal successors, (2180), 2110 states have internal predecessors, (2180), 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 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2022-02-16 12:33:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:30,645 INFO L93 Difference]: Finished difference Result 1741 states and 1790 transitions. [2022-02-16 12:33:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 12:33:30,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 45 [2022-02-16 12:33:30,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:30,654 INFO L225 Difference]: With dead ends: 1741 [2022-02-16 12:33:30,654 INFO L226 Difference]: Without dead ends: 359 [2022-02-16 12:33:30,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:33:30,658 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 34 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:30,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 211 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:30,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-02-16 12:33:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 92. [2022-02-16 12:33:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.098901098901099) internal successors, (100), 91 states have internal predecessors, (100), 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) [2022-02-16 12:33:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2022-02-16 12:33:30,686 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 45 [2022-02-16 12:33:30,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:30,686 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2022-02-16 12:33:30,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2022-02-16 12:33:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2022-02-16 12:33:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-16 12:33:30,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:30,687 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] [2022-02-16 12:33:30,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 12:33:30,688 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 12:33:30,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:30,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1400003332, now seen corresponding path program 1 times [2022-02-16 12:33:30,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:30,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696216079] [2022-02-16 12:33:30,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:30,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:30,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:30,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696216079] [2022-02-16 12:33:30,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696216079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:30,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:30,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:33:30,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839047069] [2022-02-16 12:33:30,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:30,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:33:30,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:30,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:33:30,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:33:30,832 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-02-16 12:33:30,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:30,892 INFO L93 Difference]: Finished difference Result 66 states and 65 transitions. [2022-02-16 12:33:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 12:33:30,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2022-02-16 12:33:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:30,894 INFO L225 Difference]: With dead ends: 66 [2022-02-16 12:33:30,894 INFO L226 Difference]: Without dead ends: 57 [2022-02-16 12:33:30,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:33:30,895 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:30,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 99 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-02-16 12:33:30,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-02-16 12:33:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0) internal successors, (56), 56 states have internal predecessors, (56), 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) [2022-02-16 12:33:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 56 transitions. [2022-02-16 12:33:30,898 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 56 transitions. Word has length 51 [2022-02-16 12:33:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:30,899 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 56 transitions. [2022-02-16 12:33:30,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-02-16 12:33:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 56 transitions. [2022-02-16 12:33:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-16 12:33:30,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:30,900 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] [2022-02-16 12:33:30,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 12:33:30,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 12:33:30,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:30,900 INFO L85 PathProgramCache]: Analyzing trace with hash 35787268, now seen corresponding path program 2 times [2022-02-16 12:33:30,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:30,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745388854] [2022-02-16 12:33:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:30,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:30,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:30,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745388854] [2022-02-16 12:33:30,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745388854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:30,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:30,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:33:30,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613633460] [2022-02-16 12:33:30,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:30,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:33:30,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:30,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:33:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:33:30,989 INFO L87 Difference]: Start difference. First operand 57 states and 56 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-02-16 12:33:31,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:31,025 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2022-02-16 12:33:31,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 12:33:31,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2022-02-16 12:33:31,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:31,025 INFO L225 Difference]: With dead ends: 44 [2022-02-16 12:33:31,025 INFO L226 Difference]: Without dead ends: 0 [2022-02-16 12:33:31,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:33:31,026 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:31,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 82 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-16 12:33:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-16 12:33:31,027 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) [2022-02-16 12:33:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-16 12:33:31,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2022-02-16 12:33:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:31,028 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-16 12:33:31,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-02-16 12:33:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-16 12:33:31,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-16 12:33:31,030 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-16 12:33:31,030 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-16 12:33:31,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 12:33:31,031 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-02-16 12:33:31,033 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 12:33:31,033 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 12:33:31,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 12:33:31 BasicIcfg [2022-02-16 12:33:31,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 12:33:31,035 INFO L158 Benchmark]: Toolchain (without parser) took 1955.54ms. Allocated memory was 180.4MB in the beginning and 252.7MB in the end (delta: 72.4MB). Free memory was 123.8MB in the beginning and 190.5MB in the end (delta: -66.7MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-02-16 12:33:31,035 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 180.4MB. Free memory was 141.7MB in the beginning and 141.7MB in the end (delta: 66.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 12:33:31,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.41ms. Allocated memory was 180.4MB in the beginning and 252.7MB in the end (delta: 72.4MB). Free memory was 123.6MB in the beginning and 216.3MB in the end (delta: -92.7MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-02-16 12:33:31,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.37ms. Allocated memory is still 252.7MB. Free memory was 216.3MB in the beginning and 214.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 12:33:31,036 INFO L158 Benchmark]: Boogie Preprocessor took 12.12ms. Allocated memory is still 252.7MB. Free memory was 214.7MB in the beginning and 213.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 12:33:31,036 INFO L158 Benchmark]: RCFGBuilder took 232.75ms. Allocated memory is still 252.7MB. Free memory was 213.1MB in the beginning and 201.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-16 12:33:31,037 INFO L158 Benchmark]: TraceAbstraction took 1282.08ms. Allocated memory is still 252.7MB. Free memory was 200.5MB in the beginning and 190.5MB in the end (delta: 10.0MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-02-16 12:33:31,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 180.4MB. Free memory was 141.7MB in the beginning and 141.7MB in the end (delta: 66.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.41ms. Allocated memory was 180.4MB in the beginning and 252.7MB in the end (delta: 72.4MB). Free memory was 123.6MB in the beginning and 216.3MB in the end (delta: -92.7MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.37ms. Allocated memory is still 252.7MB. Free memory was 216.3MB in the beginning and 214.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.12ms. Allocated memory is still 252.7MB. Free memory was 214.7MB in the beginning and 213.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 232.75ms. Allocated memory is still 252.7MB. Free memory was 213.1MB in the beginning and 201.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1282.08ms. Allocated memory is still 252.7MB. Free memory was 200.5MB in the beginning and 190.5MB in the end (delta: 10.0MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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: 19]: 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 3 procedures, 80 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 392 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 142 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2111occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 267 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-02-16 12:33:31,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...