/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:26:54,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:26:54,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:26:54,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 17:26:54,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:26:54,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:26:54,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:26:54,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-05-21 17:26:54,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:26:54,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:26:54,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:26:54,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:26:54,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:26:54,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:26:54,410 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:26:54,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:26:54,410 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:26:54,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:26:54,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:26:54,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:26:54,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:26:54,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:26:54,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:26:54,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:26:54,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:26:54,414 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:26:54,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:26:54,414 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:26:54,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:26:54,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:26:54,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:26:54,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:26:54,717 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:26:54,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-05-21 17:26:54,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65ab7bf0/bb021d1471c34c0bad49dcc082ea7a49/FLAGf7fbab987 [2021-05-21 17:26:55,143 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:26:55,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-05-21 17:26:55,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65ab7bf0/bb021d1471c34c0bad49dcc082ea7a49/FLAGf7fbab987 [2021-05-21 17:26:55,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65ab7bf0/bb021d1471c34c0bad49dcc082ea7a49 [2021-05-21 17:26:55,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:26:55,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:26:55,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:26:55,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:26:55,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:26:55,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:55,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48876007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55, skipping insertion in model container [2021-05-21 17:26:55,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:55,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:26:55,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:26:55,689 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/safe032_tso.oepc.i[950,963] [2021-05-21 17:26:55,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:26:55,846 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:26:55,856 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/safe032_tso.oepc.i[950,963] [2021-05-21 17:26:55,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:26:55,978 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:26:55,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55 WrapperNode [2021-05-21 17:26:55,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:26:55,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:26:55,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:26:55,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:26:55,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:26:56,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:26:56,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:26:56,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:26:56,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (1/1) ... [2021-05-21 17:26:56,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:26:56,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:26:56,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:26:56,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:26:56,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (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 [2021-05-21 17:26:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:26:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:26:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:26:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:26:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:26:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:26:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:26:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:26:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:26:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:26:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:26:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:26:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:26:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:26:56,167 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:26:56,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:26:56,612 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:26:56,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:26:56 BoogieIcfgContainer [2021-05-21 17:26:56,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:26:56,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:26:56,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:26:56,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:26:56,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:26:55" (1/3) ... [2021-05-21 17:26:56,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a165c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:26:56, skipping insertion in model container [2021-05-21 17:26:56,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:55" (2/3) ... [2021-05-21 17:26:56,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a165c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:26:56, skipping insertion in model container [2021-05-21 17:26:56,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:26:56" (3/3) ... [2021-05-21 17:26:56,621 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2021-05-21 17:26:56,628 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:26:56,628 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:26:56,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:26:56,629 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:26:56,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,677 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,677 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,686 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,686 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,689 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:56,692 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:26:56,710 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 17:26:56,735 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:26:56,735 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:26:56,736 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:26:56,736 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:26:56,736 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:26:56,736 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:26:56,736 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:26:56,736 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:26:56,748 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-05-21 17:26:57,240 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-05-21 17:26:57,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-05-21 17:26:57,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 17:26:57,331 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:57,332 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] [2021-05-21 17:26:57,332 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:57,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:57,339 INFO L82 PathProgramCache]: Analyzing trace with hash 2015733592, now seen corresponding path program 1 times [2021-05-21 17:26:57,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:57,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684838233] [2021-05-21 17:26:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:57,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:57,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684838233] [2021-05-21 17:26:57,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684838233] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:57,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:57,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:26:57,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671399083] [2021-05-21 17:26:57,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:26:57,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:57,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:26:57,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:26:57,788 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-05-21 17:26:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:58,079 INFO L93 Difference]: Finished difference Result 11438 states and 39543 transitions. [2021-05-21 17:26:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:26:58,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-05-21 17:26:58,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:58,119 INFO L225 Difference]: With dead ends: 11438 [2021-05-21 17:26:58,120 INFO L226 Difference]: Without dead ends: 4333 [2021-05-21 17:26:58,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 159.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:26:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2021-05-21 17:26:58,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 4333. [2021-05-21 17:26:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4333 states, 4332 states have (on average 3.3642659279778395) internal successors, (14574), 4332 states have internal predecessors, (14574), 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) [2021-05-21 17:26:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 14574 transitions. [2021-05-21 17:26:58,473 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 14574 transitions. Word has length 48 [2021-05-21 17:26:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:58,474 INFO L482 AbstractCegarLoop]: Abstraction has 4333 states and 14574 transitions. [2021-05-21 17:26:58,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-05-21 17:26:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 14574 transitions. [2021-05-21 17:26:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 17:26:58,484 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:58,484 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] [2021-05-21 17:26:58,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:26:58,485 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:58,486 INFO L82 PathProgramCache]: Analyzing trace with hash 315338805, now seen corresponding path program 1 times [2021-05-21 17:26:58,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:58,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203298332] [2021-05-21 17:26:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:58,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:58,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:58,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203298332] [2021-05-21 17:26:58,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203298332] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:58,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:58,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:58,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646302084] [2021-05-21 17:26:58,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:58,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:58,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:58,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:58,643 INFO L87 Difference]: Start difference. First operand 4333 states and 14574 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-05-21 17:26:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:59,053 INFO L93 Difference]: Finished difference Result 7653 states and 25687 transitions. [2021-05-21 17:26:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:26:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2021-05-21 17:26:59,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:59,072 INFO L225 Difference]: With dead ends: 7653 [2021-05-21 17:26:59,072 INFO L226 Difference]: Without dead ends: 2981 [2021-05-21 17:26:59,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 313.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:26:59,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-05-21 17:26:59,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2789. [2021-05-21 17:26:59,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2788 states have (on average 3.1251793400286942) internal successors, (8713), 2788 states have internal predecessors, (8713), 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) [2021-05-21 17:26:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 8713 transitions. [2021-05-21 17:26:59,173 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 8713 transitions. Word has length 51 [2021-05-21 17:26:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:59,174 INFO L482 AbstractCegarLoop]: Abstraction has 2789 states and 8713 transitions. [2021-05-21 17:26:59,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-05-21 17:26:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 8713 transitions. [2021-05-21 17:26:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 17:26:59,183 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:59,183 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] [2021-05-21 17:26:59,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:26:59,183 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:59,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:59,191 INFO L82 PathProgramCache]: Analyzing trace with hash 495337300, now seen corresponding path program 1 times [2021-05-21 17:26:59,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:59,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482781103] [2021-05-21 17:26:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:59,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:59,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482781103] [2021-05-21 17:26:59,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482781103] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:59,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:59,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:59,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010492802] [2021-05-21 17:26:59,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:59,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:59,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:59,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:59,394 INFO L87 Difference]: Start difference. First operand 2789 states and 8713 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-05-21 17:26:59,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:59,615 INFO L93 Difference]: Finished difference Result 3480 states and 10901 transitions. [2021-05-21 17:26:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:26:59,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 [2021-05-21 17:26:59,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:59,631 INFO L225 Difference]: With dead ends: 3480 [2021-05-21 17:26:59,631 INFO L226 Difference]: Without dead ends: 2856 [2021-05-21 17:26:59,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 166.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:26:59,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-05-21 17:26:59,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2485. [2021-05-21 17:26:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2484 states have (on average 3.0841384863123995) internal successors, (7661), 2484 states have internal predecessors, (7661), 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) [2021-05-21 17:26:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 7661 transitions. [2021-05-21 17:26:59,755 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 7661 transitions. Word has length 53 [2021-05-21 17:26:59,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:59,756 INFO L482 AbstractCegarLoop]: Abstraction has 2485 states and 7661 transitions. [2021-05-21 17:26:59,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-05-21 17:26:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 7661 transitions. [2021-05-21 17:26:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 17:26:59,764 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:59,764 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] [2021-05-21 17:26:59,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:26:59,764 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1115610283, now seen corresponding path program 1 times [2021-05-21 17:26:59,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:59,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459737530] [2021-05-21 17:26:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:59,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:59,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459737530] [2021-05-21 17:26:59,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459737530] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:59,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:59,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:26:59,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283191500] [2021-05-21 17:26:59,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:26:59,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:59,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:26:59,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:26:59,900 INFO L87 Difference]: Start difference. First operand 2485 states and 7661 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-05-21 17:27:00,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:00,010 INFO L93 Difference]: Finished difference Result 2982 states and 9073 transitions. [2021-05-21 17:27:00,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:27:00,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-05-21 17:27:00,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:00,022 INFO L225 Difference]: With dead ends: 2982 [2021-05-21 17:27:00,023 INFO L226 Difference]: Without dead ends: 2246 [2021-05-21 17:27:00,023 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 86.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:27:00,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2021-05-21 17:27:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2246. [2021-05-21 17:27:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2245 states have (on average 3.02271714922049) internal successors, (6786), 2245 states have internal predecessors, (6786), 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) [2021-05-21 17:27:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 6786 transitions. [2021-05-21 17:27:00,081 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 6786 transitions. Word has length 55 [2021-05-21 17:27:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:00,081 INFO L482 AbstractCegarLoop]: Abstraction has 2246 states and 6786 transitions. [2021-05-21 17:27:00,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-05-21 17:27:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 6786 transitions. [2021-05-21 17:27:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 17:27:00,087 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:27:00,088 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] [2021-05-21 17:27:00,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:27:00,088 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:27:00,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:27:00,091 INFO L82 PathProgramCache]: Analyzing trace with hash 19651416, now seen corresponding path program 1 times [2021-05-21 17:27:00,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:27:00,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511282714] [2021-05-21 17:27:00,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:27:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:27:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:27:00,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:27:00,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511282714] [2021-05-21 17:27:00,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511282714] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:27:00,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:27:00,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:27:00,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103187924] [2021-05-21 17:27:00,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:27:00,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:27:00,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:27:00,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:27:00,192 INFO L87 Difference]: Start difference. First operand 2246 states and 6786 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) [2021-05-21 17:27:00,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:00,344 INFO L93 Difference]: Finished difference Result 2177 states and 6401 transitions. [2021-05-21 17:27:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:27:00,345 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 [2021-05-21 17:27:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:00,351 INFO L225 Difference]: With dead ends: 2177 [2021-05-21 17:27:00,352 INFO L226 Difference]: Without dead ends: 1601 [2021-05-21 17:27:00,352 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:27:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2021-05-21 17:27:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2021-05-21 17:27:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 2.88125) internal successors, (4610), 1600 states have internal predecessors, (4610), 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) [2021-05-21 17:27:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 4610 transitions. [2021-05-21 17:27:00,387 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 4610 transitions. Word has length 56 [2021-05-21 17:27:00,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:00,387 INFO L482 AbstractCegarLoop]: Abstraction has 1601 states and 4610 transitions. [2021-05-21 17:27:00,387 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) [2021-05-21 17:27:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 4610 transitions. [2021-05-21 17:27:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 17:27:00,391 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:27:00,391 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, 1] [2021-05-21 17:27:00,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:27:00,391 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:27:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:27:00,391 INFO L82 PathProgramCache]: Analyzing trace with hash -379824599, now seen corresponding path program 1 times [2021-05-21 17:27:00,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:27:00,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331503785] [2021-05-21 17:27:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:27:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:27:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:27:00,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:27:00,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331503785] [2021-05-21 17:27:00,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331503785] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:27:00,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:27:00,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:27:00,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157996132] [2021-05-21 17:27:00,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:27:00,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:27:00,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:27:00,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:27:00,486 INFO L87 Difference]: Start difference. First operand 1601 states and 4610 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-05-21 17:27:00,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:27:00,557 INFO L93 Difference]: Finished difference Result 1169 states and 3287 transitions. [2021-05-21 17:27:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 17:27:00,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2021-05-21 17:27:00,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:27:00,558 INFO L225 Difference]: With dead ends: 1169 [2021-05-21 17:27:00,558 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:27:00,558 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 75.3ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:27:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:27:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:27:00,559 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) [2021-05-21 17:27:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:27:00,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-05-21 17:27:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:27:00,559 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:27:00,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-05-21 17:27:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:27:00,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:27:00,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:27:00,562 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:27:00,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:27:00 BasicIcfg [2021-05-21 17:27:00,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:27:00,564 INFO L168 Benchmark]: Toolchain (without parser) took 5061.14 ms. Allocated memory was 358.6 MB in the beginning and 918.6 MB in the end (delta: 559.9 MB). Free memory was 321.8 MB in the beginning and 737.5 MB in the end (delta: -415.7 MB). Peak memory consumption was 147.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:00,565 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 358.6 MB. Free memory is still 339.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:27:00,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.74 ms. Allocated memory is still 358.6 MB. Free memory was 321.5 MB in the beginning and 321.9 MB in the end (delta: -406.4 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:00,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.37 ms. Allocated memory is still 358.6 MB. Free memory was 321.9 MB in the beginning and 319.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:00,565 INFO L168 Benchmark]: Boogie Preprocessor took 30.44 ms. Allocated memory is still 358.6 MB. Free memory was 319.8 MB in the beginning and 318.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:00,566 INFO L168 Benchmark]: RCFGBuilder took 529.28 ms. Allocated memory is still 358.6 MB. Free memory was 318.8 MB in the beginning and 293.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:00,566 INFO L168 Benchmark]: TraceAbstraction took 3948.00 ms. Allocated memory was 358.6 MB in the beginning and 918.6 MB in the end (delta: 559.9 MB). Free memory was 292.6 MB in the beginning and 737.5 MB in the end (delta: -445.0 MB). Peak memory consumption was 118.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:27:00,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 358.6 MB. Free memory is still 339.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 462.74 ms. Allocated memory is still 358.6 MB. Free memory was 321.5 MB in the beginning and 321.9 MB in the end (delta: -406.4 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.37 ms. Allocated memory is still 358.6 MB. Free memory was 321.9 MB in the beginning and 319.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.44 ms. Allocated memory is still 358.6 MB. Free memory was 319.8 MB in the beginning and 318.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 529.28 ms. Allocated memory is still 358.6 MB. Free memory was 318.8 MB in the beginning and 293.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3948.00 ms. Allocated memory was 358.6 MB in the beginning and 918.6 MB in the end (delta: 559.9 MB). Free memory was 292.6 MB in the beginning and 737.5 MB in the end (delta: -445.0 MB). Peak memory consumption was 118.1 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, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3827.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 125.2ms, AutomataDifference: 1422.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 504.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 630 SDtfs, 1063 SDslu, 2022 SDs, 0 SdLazy, 258 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 215.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 930.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 656.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 563 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.3ms SsaConstructionTime, 136.4ms SatisfiabilityAnalysisTime, 745.4ms InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 1191 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...