/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:04:22,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:04:22,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:04:22,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:04:22,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:04:22,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:04:22,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:04:22,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:04:22,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:04:22,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:04:22,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:04:22,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:04:22,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:04:22,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:04:22,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:04:22,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:04:22,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:04:22,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:04:22,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:04:22,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:04:22,604 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-Separate.epf [2021-06-05 10:04:22,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:04:22,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:04:22,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:04:22,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:04:22,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:04:22,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:04:22,644 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:04:22,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:04:22,644 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:04:22,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:04:22,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:04:22,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:04:22,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:04:22,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:04:22,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:04:22,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:04:22,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:04:22,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:04:22,648 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:04:22,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:04:22,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:04:22,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:04:22,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:04:22,992 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:04:22,992 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:04:22,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-06-05 10:04:23,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/398d65e5a/57b5108edf5449de9a248d8dd163059f/FLAG0f9161917 [2021-06-05 10:04:23,542 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:04:23,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-06-05 10:04:23,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/398d65e5a/57b5108edf5449de9a248d8dd163059f/FLAG0f9161917 [2021-06-05 10:04:23,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/398d65e5a/57b5108edf5449de9a248d8dd163059f [2021-06-05 10:04:23,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:04:23,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:04:23,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:04:23,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:04:23,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:04:23,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:04:23" (1/1) ... [2021-06-05 10:04:23,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c246940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:23, skipping insertion in model container [2021-06-05 10:04:23,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:04:23" (1/1) ... [2021-06-05 10:04:23,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:04:23,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:04:24,028 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i[950,963] [2021-06-05 10:04:24,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:04:24,200 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:04:24,214 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i[950,963] [2021-06-05 10:04:24,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:04:24,312 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:04:24,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24 WrapperNode [2021-06-05 10:04:24,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:04:24,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:04:24,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:04:24,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:04:24,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:04:24,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:04:24,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:04:24,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:04:24,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... [2021-06-05 10:04:24,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:04:24,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:04:24,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:04:24,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:04:24,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:04:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:04:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:04:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:04:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:04:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:04:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:04:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:04:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:04:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:04:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:04:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:04:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:04:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:04:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:04:24,461 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:04:24,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:04:24,924 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:04:24,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:04:24 BoogieIcfgContainer [2021-06-05 10:04:24,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:04:24,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:04:24,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:04:24,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:04:24,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:04:23" (1/3) ... [2021-06-05 10:04:24,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63191848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:04:24, skipping insertion in model container [2021-06-05 10:04:24,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:04:24" (2/3) ... [2021-06-05 10:04:24,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63191848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:04:24, skipping insertion in model container [2021-06-05 10:04:24,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:04:24" (3/3) ... [2021-06-05 10:04:24,937 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2021-06-05 10:04:24,943 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:04:24,943 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:04:24,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:04:24,944 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:04:24,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,986 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,986 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,997 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,998 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,999 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:24,999 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,009 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,009 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:04:25,016 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:04:25,034 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:04:25,049 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:04:25,049 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:04:25,049 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:04:25,049 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:04:25,049 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:04:25,049 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:04:25,049 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:04:25,050 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:04:25,058 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:04:25,559 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:04:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:04:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:04:25,652 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:04:25,653 INFO L521 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] [2021-06-05 10:04:25,653 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:04:25,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:04:25,661 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-05 10:04:25,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:04:25,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495081729] [2021-06-05 10:04:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:04:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:04:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:04:26,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:04:26,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495081729] [2021-06-05 10:04:26,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495081729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:04:26,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:04:26,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:04:26,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568841734] [2021-06-05 10:04:26,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:04:26,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:04:26,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:04:26,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:04:26,166 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-06-05 10:04:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:04:26,689 INFO L93 Difference]: Finished difference Result 18846 states and 64895 transitions. [2021-06-05 10:04:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:04:26,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-06-05 10:04:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:04:26,809 INFO L225 Difference]: With dead ends: 18846 [2021-06-05 10:04:26,810 INFO L226 Difference]: Without dead ends: 5421 [2021-06-05 10:04:26,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 195.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:04:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5421 states. [2021-06-05 10:04:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 4413. [2021-06-05 10:04:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 4412 states have (on average 3.259292837715322) internal successors, (14380), 4412 states have internal predecessors, (14380), 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) [2021-06-05 10:04:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 14380 transitions. [2021-06-05 10:04:27,107 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 14380 transitions. Word has length 49 [2021-06-05 10:04:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:04:27,110 INFO L482 AbstractCegarLoop]: Abstraction has 4413 states and 14380 transitions. [2021-06-05 10:04:27,110 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-06-05 10:04:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 14380 transitions. [2021-06-05 10:04:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:04:27,128 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:04:27,129 INFO L521 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] [2021-06-05 10:04:27,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:04:27,129 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:04:27,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:04:27,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1271821275, now seen corresponding path program 1 times [2021-06-05 10:04:27,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:04:27,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854801828] [2021-06-05 10:04:27,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:04:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:04:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:04:27,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:04:27,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854801828] [2021-06-05 10:04:27,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854801828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:04:27,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:04:27,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:04:27,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216256257] [2021-06-05 10:04:27,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:04:27,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:04:27,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:04:27,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:04:27,323 INFO L87 Difference]: Start difference. First operand 4413 states and 14380 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-06-05 10:04:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:04:27,542 INFO L93 Difference]: Finished difference Result 5043 states and 16344 transitions. [2021-06-05 10:04:27,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:04:27,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-06-05 10:04:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:04:27,565 INFO L225 Difference]: With dead ends: 5043 [2021-06-05 10:04:27,565 INFO L226 Difference]: Without dead ends: 3943 [2021-06-05 10:04:27,566 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 109.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:04:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2021-06-05 10:04:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3847. [2021-06-05 10:04:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3847 states, 3846 states have (on average 3.2503900156006242) internal successors, (12501), 3846 states have internal predecessors, (12501), 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) [2021-06-05 10:04:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 12501 transitions. [2021-06-05 10:04:27,691 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 12501 transitions. Word has length 53 [2021-06-05 10:04:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:04:27,692 INFO L482 AbstractCegarLoop]: Abstraction has 3847 states and 12501 transitions. [2021-06-05 10:04:27,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-06-05 10:04:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 12501 transitions. [2021-06-05 10:04:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:04:27,702 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:04:27,702 INFO L521 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] [2021-06-05 10:04:27,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:04:27,702 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:04:27,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:04:27,710 INFO L82 PathProgramCache]: Analyzing trace with hash -962643297, now seen corresponding path program 1 times [2021-06-05 10:04:27,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:04:27,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751262779] [2021-06-05 10:04:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:04:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:04:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:04:27,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:04:27,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751262779] [2021-06-05 10:04:27,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751262779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:04:27,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:04:27,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:04:27,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156406523] [2021-06-05 10:04:27,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:04:27,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:04:27,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:04:27,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:04:27,839 INFO L87 Difference]: Start difference. First operand 3847 states and 12501 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-06-05 10:04:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:04:28,032 INFO L93 Difference]: Finished difference Result 4167 states and 13457 transitions. [2021-06-05 10:04:28,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:04:28,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2021-06-05 10:04:28,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:04:28,056 INFO L225 Difference]: With dead ends: 4167 [2021-06-05 10:04:28,056 INFO L226 Difference]: Without dead ends: 3607 [2021-06-05 10:04:28,056 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 102.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:04:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2021-06-05 10:04:28,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3543. [2021-06-05 10:04:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 3542 states have (on average 3.2323546019198193) internal successors, (11449), 3542 states have internal predecessors, (11449), 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) [2021-06-05 10:04:28,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 11449 transitions. [2021-06-05 10:04:28,183 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 11449 transitions. Word has length 54 [2021-06-05 10:04:28,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:04:28,185 INFO L482 AbstractCegarLoop]: Abstraction has 3543 states and 11449 transitions. [2021-06-05 10:04:28,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-06-05 10:04:28,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 11449 transitions. [2021-06-05 10:04:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:04:28,193 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:04:28,193 INFO L521 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] [2021-06-05 10:04:28,194 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:04:28,194 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:04:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:04:28,195 INFO L82 PathProgramCache]: Analyzing trace with hash -2103032967, now seen corresponding path program 1 times [2021-06-05 10:04:28,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:04:28,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188189457] [2021-06-05 10:04:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:04:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:04:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:04:28,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:04:28,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188189457] [2021-06-05 10:04:28,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188189457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:04:28,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:04:28,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:04:28,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794530776] [2021-06-05 10:04:28,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:04:28,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:04:28,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:04:28,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:04:28,413 INFO L87 Difference]: Start difference. First operand 3543 states and 11449 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-06-05 10:04:28,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:04:28,534 INFO L93 Difference]: Finished difference Result 5383 states and 17339 transitions. [2021-06-05 10:04:28,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:04:28,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-06-05 10:04:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:04:28,549 INFO L225 Difference]: With dead ends: 5383 [2021-06-05 10:04:28,550 INFO L226 Difference]: Without dead ends: 2743 [2021-06-05 10:04:28,550 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:04:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2021-06-05 10:04:28,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2743. [2021-06-05 10:04:28,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2742 states have (on average 3.12873814733771) internal successors, (8579), 2742 states have internal predecessors, (8579), 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) [2021-06-05 10:04:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 8579 transitions. [2021-06-05 10:04:28,623 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 8579 transitions. Word has length 54 [2021-06-05 10:04:28,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:04:28,625 INFO L482 AbstractCegarLoop]: Abstraction has 2743 states and 8579 transitions. [2021-06-05 10:04:28,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-06-05 10:04:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 8579 transitions. [2021-06-05 10:04:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:04:28,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:04:28,634 INFO L521 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] [2021-06-05 10:04:28,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:04:28,636 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:04:28,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:04:28,638 INFO L82 PathProgramCache]: Analyzing trace with hash -804719694, now seen corresponding path program 1 times [2021-06-05 10:04:28,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:04:28,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142289032] [2021-06-05 10:04:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:04:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:04:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:04:28,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:04:28,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142289032] [2021-06-05 10:04:28,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142289032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:04:28,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:04:28,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:04:28,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117055748] [2021-06-05 10:04:28,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:04:28,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:04:28,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:04:28,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:04:28,774 INFO L87 Difference]: Start difference. First operand 2743 states and 8579 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2021-06-05 10:04:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:04:28,960 INFO L93 Difference]: Finished difference Result 3023 states and 9413 transitions. [2021-06-05 10:04:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:04:28,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) Word has length 56 [2021-06-05 10:04:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:04:28,967 INFO L225 Difference]: With dead ends: 3023 [2021-06-05 10:04:28,968 INFO L226 Difference]: Without dead ends: 1798 [2021-06-05 10:04:28,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 145.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:04:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2021-06-05 10:04:29,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2021-06-05 10:04:29,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1797 states have (on average 3.132999443516973) internal successors, (5630), 1797 states have internal predecessors, (5630), 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) [2021-06-05 10:04:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 5630 transitions. [2021-06-05 10:04:29,021 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 5630 transitions. Word has length 56 [2021-06-05 10:04:29,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:04:29,021 INFO L482 AbstractCegarLoop]: Abstraction has 1798 states and 5630 transitions. [2021-06-05 10:04:29,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2021-06-05 10:04:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 5630 transitions. [2021-06-05 10:04:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:04:29,025 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:04:29,026 INFO L521 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] [2021-06-05 10:04:29,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:04:29,026 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:04:29,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:04:29,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1506580816, now seen corresponding path program 1 times [2021-06-05 10:04:29,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:04:29,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819023271] [2021-06-05 10:04:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:04:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:04:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:04:29,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:04:29,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819023271] [2021-06-05 10:04:29,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819023271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:04:29,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:04:29,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:04:29,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543245667] [2021-06-05 10:04:29,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:04:29,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:04:29,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:04:29,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:04:29,142 INFO L87 Difference]: Start difference. First operand 1798 states and 5630 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-06-05 10:04:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:04:29,280 INFO L93 Difference]: Finished difference Result 1638 states and 5102 transitions. [2021-06-05 10:04:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:04:29,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-06-05 10:04:29,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:04:29,281 INFO L225 Difference]: With dead ends: 1638 [2021-06-05 10:04:29,281 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:04:29,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:04:29,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:04:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:04:29,282 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) [2021-06-05 10:04:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:04:29,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-06-05 10:04:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:04:29,283 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:04:29,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-06-05 10:04:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:04:29,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:04:29,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:04:29,285 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:04:29,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:04:29 BasicIcfg [2021-06-05 10:04:29,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:04:29,288 INFO L168 Benchmark]: Toolchain (without parser) took 5445.18 ms. Allocated memory was 341.8 MB in the beginning and 866.1 MB in the end (delta: 524.3 MB). Free memory was 304.3 MB in the beginning and 649.4 MB in the end (delta: -345.0 MB). Peak memory consumption was 181.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:04:29,288 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:04:29,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.32 ms. Allocated memory is still 341.8 MB. Free memory was 304.1 MB in the beginning and 304.9 MB in the end (delta: -764.8 kB). Peak memory consumption was 8.8 MB. Max. memory is 16.0 GB. [2021-06-05 10:04:29,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.91 ms. Allocated memory is still 341.8 MB. Free memory was 304.9 MB in the beginning and 303.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:04:29,289 INFO L168 Benchmark]: Boogie Preprocessor took 19.06 ms. Allocated memory is still 341.8 MB. Free memory was 303.8 MB in the beginning and 301.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:04:29,289 INFO L168 Benchmark]: RCFGBuilder took 550.77 ms. Allocated memory is still 341.8 MB. Free memory was 301.7 MB in the beginning and 275.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:04:29,290 INFO L168 Benchmark]: TraceAbstraction took 4356.02 ms. Allocated memory was 341.8 MB in the beginning and 866.1 MB in the end (delta: 524.3 MB). Free memory was 275.5 MB in the beginning and 649.4 MB in the end (delta: -373.9 MB). Peak memory consumption was 152.5 MB. Max. memory is 16.0 GB. [2021-06-05 10:04:29,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 468.32 ms. Allocated memory is still 341.8 MB. Free memory was 304.1 MB in the beginning and 304.9 MB in the end (delta: -764.8 kB). Peak memory consumption was 8.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.91 ms. Allocated memory is still 341.8 MB. Free memory was 304.9 MB in the beginning and 303.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.06 ms. Allocated memory is still 341.8 MB. Free memory was 303.8 MB in the beginning and 301.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 550.77 ms. Allocated memory is still 341.8 MB. Free memory was 301.7 MB in the beginning and 275.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4356.02 ms. Allocated memory was 341.8 MB in the beginning and 866.1 MB in the end (delta: 524.3 MB). Free memory was 275.5 MB in the beginning and 649.4 MB in the end (delta: -373.9 MB). Peak memory consumption was 152.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4237.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 139.1ms, AutomataDifference: 1617.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 509.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 665 SDtfs, 905 SDslu, 2264 SDs, 0 SdLazy, 199 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 269.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 850.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 662.3ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1168 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 39.7ms SsaConstructionTime, 208.7ms SatisfiabilityAnalysisTime, 874.9ms InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 1277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! Received shutdown request...