/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 17:42:21,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 17:42:21,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 17:42:21,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-12 17:42:21,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 17:42:21,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 17:42:21,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 17:42:21,169 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 [2021-08-12 17:42:21,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 17:42:21,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 17:42:21,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-12 17:42:21,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-12 17:42:21,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 17:42:21,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 17:42:21,204 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 17:42:21,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 17:42:21,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 17:42:21,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 17:42:21,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 17:42:21,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 17:42:21,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 17:42:21,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 17:42:21,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 17:42:21,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 17:42:21,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 17:42:21,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 17:42:21,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 17:42:21,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 17:42:21,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 17:42:21,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 17:42:21,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 17:42:21,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 17:42:21,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 17:42:21,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 17:42:21,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 17:42:21,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 17:42:21,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 17:42:21,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 17:42:21,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 17:42:21,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 17:42:21,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 17:42:21,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 17:42:21,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 17:42:21,550 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 17:42:21,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-08-12 17:42:21,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746af203f/fa98887e1f9e47ba8c803a7c2b75c24c/FLAGb97915d18 [2021-08-12 17:42:22,143 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 17:42:22,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-08-12 17:42:22,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746af203f/fa98887e1f9e47ba8c803a7c2b75c24c/FLAGb97915d18 [2021-08-12 17:42:22,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746af203f/fa98887e1f9e47ba8c803a7c2b75c24c [2021-08-12 17:42:22,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 17:42:22,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 17:42:22,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 17:42:22,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 17:42:22,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 17:42:22,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 05:42:22" (1/1) ... [2021-08-12 17:42:22,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b421cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:22, skipping insertion in model container [2021-08-12 17:42:22,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 05:42:22" (1/1) ... [2021-08-12 17:42:22,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 17:42:22,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 17:42:22,791 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/thin002_pso.oepc.i[950,963] [2021-08-12 17:42:22,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 17:42:22,967 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 17:42:22,978 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/thin002_pso.oepc.i[950,963] [2021-08-12 17:42:23,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 17:42:23,082 INFO L208 MainTranslator]: Completed translation [2021-08-12 17:42:23,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23 WrapperNode [2021-08-12 17:42:23,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 17:42:23,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 17:42:23,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 17:42:23,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 17:42:23,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 17:42:23,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 17:42:23,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 17:42:23,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 17:42:23,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (1/1) ... [2021-08-12 17:42:23,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 17:42:23,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 17:42:23,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 17:42:23,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 17:42:23,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (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 [2021-08-12 17:42:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 17:42:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 17:42:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 17:42:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 17:42:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-12 17:42:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-12 17:42:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-12 17:42:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-12 17:42:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-12 17:42:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-12 17:42:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-12 17:42:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-12 17:42:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 17:42:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 17:42:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 17:42:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 17:42:23,248 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 17:42:23,655 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 17:42:23,655 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-12 17:42:23,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 05:42:23 BoogieIcfgContainer [2021-08-12 17:42:23,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 17:42:23,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 17:42:23,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 17:42:23,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 17:42:23,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 05:42:22" (1/3) ... [2021-08-12 17:42:23,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e4db9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 05:42:23, skipping insertion in model container [2021-08-12 17:42:23,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:42:23" (2/3) ... [2021-08-12 17:42:23,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e4db9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 05:42:23, skipping insertion in model container [2021-08-12 17:42:23,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 05:42:23" (3/3) ... [2021-08-12 17:42:23,664 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2021-08-12 17:42:23,669 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 17:42:23,671 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 17:42:23,672 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 17:42:23,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,720 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,720 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,721 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,721 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,721 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,721 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,722 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,722 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,722 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,722 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,723 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,723 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,723 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,724 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,724 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,725 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,730 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,730 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,734 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,734 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,734 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,735 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,739 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,740 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:42:23,742 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-12 17:42:23,761 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-12 17:42:23,793 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 17:42:23,793 INFO L379 AbstractCegarLoop]: Hoare is true [2021-08-12 17:42:23,793 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 17:42:23,793 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 17:42:23,793 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 17:42:23,793 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 17:42:23,794 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 17:42:23,794 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 17:42:23,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-08-12 17:42:33,756 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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) [2021-08-12 17:42:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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) [2021-08-12 17:42:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-12 17:42:34,282 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:34,283 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:34,284 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:34,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-08-12 17:42:34,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:34,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470143123] [2021-08-12 17:42:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:34,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:34,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470143123] [2021-08-12 17:42:34,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470143123] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:34,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:34,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 17:42:34,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806476373] [2021-08-12 17:42:34,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 17:42:34,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:34,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 17:42:34,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-12 17:42:34,926 INFO L87 Difference]: Start difference. First operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-08-12 17:42:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:39,284 INFO L93 Difference]: Finished difference Result 141733 states and 625454 transitions. [2021-08-12 17:42:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-12 17:42:39,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2021-08-12 17:42:39,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:39,758 INFO L225 Difference]: With dead ends: 141733 [2021-08-12 17:42:39,758 INFO L226 Difference]: Without dead ends: 32316 [2021-08-12 17:42:39,920 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-12 17:42:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-08-12 17:42:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-08-12 17:42:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 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) [2021-08-12 17:42:42,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-08-12 17:42:42,120 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 59 [2021-08-12 17:42:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:42,122 INFO L482 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-08-12 17:42:42,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-08-12 17:42:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-08-12 17:42:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-12 17:42:42,178 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:42,178 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:42,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 17:42:42,178 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:42,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1901105981, now seen corresponding path program 1 times [2021-08-12 17:42:42,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:42,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068926649] [2021-08-12 17:42:42,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:42,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:42,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068926649] [2021-08-12 17:42:42,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068926649] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:42,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:42,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 17:42:42,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015281395] [2021-08-12 17:42:42,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 17:42:42,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:42,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 17:42:42,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-12 17:42:42,357 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-08-12 17:42:43,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:43,600 INFO L93 Difference]: Finished difference Result 39666 states and 167752 transitions. [2021-08-12 17:42:43,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-12 17:42:43,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-08-12 17:42:43,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:43,834 INFO L225 Difference]: With dead ends: 39666 [2021-08-12 17:42:43,835 INFO L226 Difference]: Without dead ends: 29376 [2021-08-12 17:42:43,866 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 101.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-12 17:42:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-08-12 17:42:44,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 29376. [2021-08-12 17:42:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29376 states, 29375 states have (on average 4.221106382978723) internal successors, (123995), 29375 states have internal predecessors, (123995), 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) [2021-08-12 17:42:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29376 states to 29376 states and 123995 transitions. [2021-08-12 17:42:45,187 INFO L78 Accepts]: Start accepts. Automaton has 29376 states and 123995 transitions. Word has length 61 [2021-08-12 17:42:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:45,188 INFO L482 AbstractCegarLoop]: Abstraction has 29376 states and 123995 transitions. [2021-08-12 17:42:45,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-08-12 17:42:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 29376 states and 123995 transitions. [2021-08-12 17:42:45,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-12 17:42:45,247 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:45,248 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:45,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 17:42:45,248 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:45,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:45,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1062827298, now seen corresponding path program 1 times [2021-08-12 17:42:45,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:45,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255420729] [2021-08-12 17:42:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:45,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:45,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255420729] [2021-08-12 17:42:45,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255420729] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:45,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:45,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 17:42:45,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152930704] [2021-08-12 17:42:45,419 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 17:42:45,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:45,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 17:42:45,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-12 17:42:45,420 INFO L87 Difference]: Start difference. First operand 29376 states and 123995 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:42:46,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:46,641 INFO L93 Difference]: Finished difference Result 42536 states and 177813 transitions. [2021-08-12 17:42:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 17:42:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-08-12 17:42:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:46,813 INFO L225 Difference]: With dead ends: 42536 [2021-08-12 17:42:46,813 INFO L226 Difference]: Without dead ends: 19506 [2021-08-12 17:42:46,850 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 190.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-12 17:42:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19506 states. [2021-08-12 17:42:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19506 to 19506. [2021-08-12 17:42:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19506 states, 19505 states have (on average 4.092284029735965) internal successors, (79820), 19505 states have internal predecessors, (79820), 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) [2021-08-12 17:42:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19506 states to 19506 states and 79820 transitions. [2021-08-12 17:42:47,675 INFO L78 Accepts]: Start accepts. Automaton has 19506 states and 79820 transitions. Word has length 63 [2021-08-12 17:42:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:47,675 INFO L482 AbstractCegarLoop]: Abstraction has 19506 states and 79820 transitions. [2021-08-12 17:42:47,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:42:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19506 states and 79820 transitions. [2021-08-12 17:42:47,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-12 17:42:47,901 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:47,901 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:47,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 17:42:47,902 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:47,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:47,902 INFO L82 PathProgramCache]: Analyzing trace with hash -719271399, now seen corresponding path program 1 times [2021-08-12 17:42:47,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:47,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458924892] [2021-08-12 17:42:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:47,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:47,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458924892] [2021-08-12 17:42:47,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458924892] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:47,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:47,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 17:42:47,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180620617] [2021-08-12 17:42:47,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 17:42:47,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:47,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 17:42:47,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-12 17:42:47,998 INFO L87 Difference]: Start difference. First operand 19506 states and 79820 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-08-12 17:42:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:48,642 INFO L93 Difference]: Finished difference Result 29586 states and 121220 transitions. [2021-08-12 17:42:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-12 17:42:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2021-08-12 17:42:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:48,828 INFO L225 Difference]: With dead ends: 29586 [2021-08-12 17:42:48,829 INFO L226 Difference]: Without dead ends: 11911 [2021-08-12 17:42:48,850 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 148.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-12 17:42:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11911 states. [2021-08-12 17:42:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11911 to 11911. [2021-08-12 17:42:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11911 states, 11910 states have (on average 4.041813602015114) internal successors, (48138), 11910 states have internal predecessors, (48138), 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) [2021-08-12 17:42:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11911 states to 11911 states and 48138 transitions. [2021-08-12 17:42:49,250 INFO L78 Accepts]: Start accepts. Automaton has 11911 states and 48138 transitions. Word has length 66 [2021-08-12 17:42:49,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:49,251 INFO L482 AbstractCegarLoop]: Abstraction has 11911 states and 48138 transitions. [2021-08-12 17:42:49,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-08-12 17:42:49,251 INFO L276 IsEmpty]: Start isEmpty. Operand 11911 states and 48138 transitions. [2021-08-12 17:42:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-12 17:42:49,267 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:49,267 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:49,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 17:42:49,268 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:49,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:49,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1694784545, now seen corresponding path program 1 times [2021-08-12 17:42:49,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:49,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447655230] [2021-08-12 17:42:49,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:49,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:49,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447655230] [2021-08-12 17:42:49,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447655230] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:49,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:49,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 17:42:49,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550955315] [2021-08-12 17:42:49,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 17:42:49,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 17:42:49,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-12 17:42:49,385 INFO L87 Difference]: Start difference. First operand 11911 states and 48138 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-08-12 17:42:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:49,891 INFO L93 Difference]: Finished difference Result 14311 states and 57578 transitions. [2021-08-12 17:42:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-12 17:42:49,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2021-08-12 17:42:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:49,989 INFO L225 Difference]: With dead ends: 14311 [2021-08-12 17:42:49,989 INFO L226 Difference]: Without dead ends: 10951 [2021-08-12 17:42:49,997 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 129.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-12 17:42:50,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2021-08-12 17:42:50,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 10951. [2021-08-12 17:42:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 4.019178082191781) internal successors, (44010), 10950 states have internal predecessors, (44010), 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) [2021-08-12 17:42:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 44010 transitions. [2021-08-12 17:42:50,535 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 44010 transitions. Word has length 67 [2021-08-12 17:42:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:50,536 INFO L482 AbstractCegarLoop]: Abstraction has 10951 states and 44010 transitions. [2021-08-12 17:42:50,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-08-12 17:42:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 44010 transitions. [2021-08-12 17:42:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-12 17:42:50,557 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:50,557 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:50,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 17:42:50,557 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:50,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:50,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1575356882, now seen corresponding path program 1 times [2021-08-12 17:42:50,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:50,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035920309] [2021-08-12 17:42:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:50,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:50,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:50,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035920309] [2021-08-12 17:42:50,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035920309] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:50,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:50,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 17:42:50,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398363229] [2021-08-12 17:42:50,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 17:42:50,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:50,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 17:42:50,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-12 17:42:50,698 INFO L87 Difference]: Start difference. First operand 10951 states and 44010 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2021-08-12 17:42:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:51,288 INFO L93 Difference]: Finished difference Result 18951 states and 76270 transitions. [2021-08-12 17:42:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 17:42:51,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 69 [2021-08-12 17:42:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:51,490 INFO L225 Difference]: With dead ends: 18951 [2021-08-12 17:42:51,490 INFO L226 Difference]: Without dead ends: 13351 [2021-08-12 17:42:51,497 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 166.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-12 17:42:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13351 states. [2021-08-12 17:42:51,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13351 to 10951. [2021-08-12 17:42:51,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 4.007488584474886) internal successors, (43882), 10950 states have internal predecessors, (43882), 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) [2021-08-12 17:42:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 43882 transitions. [2021-08-12 17:42:51,923 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 43882 transitions. Word has length 69 [2021-08-12 17:42:51,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:51,923 INFO L482 AbstractCegarLoop]: Abstraction has 10951 states and 43882 transitions. [2021-08-12 17:42:51,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2021-08-12 17:42:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 43882 transitions. [2021-08-12 17:42:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-12 17:42:51,942 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:51,942 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:51,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 17:42:51,942 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:51,943 INFO L82 PathProgramCache]: Analyzing trace with hash 395390428, now seen corresponding path program 2 times [2021-08-12 17:42:51,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:51,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109669839] [2021-08-12 17:42:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:52,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:52,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:52,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109669839] [2021-08-12 17:42:52,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109669839] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:52,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:52,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 17:42:52,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486341346] [2021-08-12 17:42:52,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 17:42:52,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:52,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 17:42:52,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-12 17:42:52,076 INFO L87 Difference]: Start difference. First operand 10951 states and 43882 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-08-12 17:42:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:52,681 INFO L93 Difference]: Finished difference Result 15431 states and 61706 transitions. [2021-08-12 17:42:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 17:42:52,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2021-08-12 17:42:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:52,799 INFO L225 Difference]: With dead ends: 15431 [2021-08-12 17:42:52,799 INFO L226 Difference]: Without dead ends: 6971 [2021-08-12 17:42:52,816 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 136.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-12 17:42:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-08-12 17:42:53,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6971. [2021-08-12 17:42:53,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6970 states have (on average 3.9176470588235293) internal successors, (27306), 6970 states have internal predecessors, (27306), 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) [2021-08-12 17:42:53,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 27306 transitions. [2021-08-12 17:42:53,179 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 27306 transitions. Word has length 69 [2021-08-12 17:42:53,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:53,180 INFO L482 AbstractCegarLoop]: Abstraction has 6971 states and 27306 transitions. [2021-08-12 17:42:53,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-08-12 17:42:53,180 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 27306 transitions. [2021-08-12 17:42:53,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-08-12 17:42:53,188 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:42:53,188 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:42:53,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 17:42:53,189 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:42:53,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:42:53,189 INFO L82 PathProgramCache]: Analyzing trace with hash 509402872, now seen corresponding path program 1 times [2021-08-12 17:42:53,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:42:53,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487122946] [2021-08-12 17:42:53,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:42:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:42:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:42:53,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:42:53,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487122946] [2021-08-12 17:42:53,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487122946] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:42:53,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:42:53,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 17:42:53,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85536387] [2021-08-12 17:42:53,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 17:42:53,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:42:53,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 17:42:53,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-12 17:42:53,283 INFO L87 Difference]: Start difference. First operand 6971 states and 27306 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-08-12 17:42:53,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:42:53,494 INFO L93 Difference]: Finished difference Result 6971 states and 27306 transitions. [2021-08-12 17:42:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 17:42:53,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2021-08-12 17:42:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:42:53,559 INFO L225 Difference]: With dead ends: 6971 [2021-08-12 17:42:53,560 INFO L226 Difference]: Without dead ends: 0 [2021-08-12 17:42:53,566 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 118.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-12 17:42:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-12 17:42:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-12 17:42:53,567 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) [2021-08-12 17:42:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-12 17:42:53,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-08-12 17:42:53,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:42:53,633 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-12 17:42:53,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-08-12 17:42:53,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-12 17:42:53,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-12 17:42:53,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 17:42:53,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-12 17:42:54,058 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-08-12 17:49:30,383 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 19 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown