/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/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:34:27,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:34:27,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:34:27,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:34:27,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:34:27,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:34:27,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:34:27,934 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 [2021-03-10 17:34:27,962 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:34:27,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:34:27,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:34:27,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:34:27,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:34:27,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:34:27,966 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:34:27,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:34:27,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:34:27,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:34:27,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:34:27,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:34:27,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:34:27,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:34:27,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:34:27,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:34:27,969 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:34:27,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:34:27,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:34:28,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:34:28,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:34:28,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:34:28,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:34:28,253 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:34:28,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-03-10 17:34:28,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3139c338/cada645a1b41497e8929583f5615cf32/FLAGa297e89ad [2021-03-10 17:34:28,728 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:34:28,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-03-10 17:34:28,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3139c338/cada645a1b41497e8929583f5615cf32/FLAGa297e89ad [2021-03-10 17:34:28,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3139c338/cada645a1b41497e8929583f5615cf32 [2021-03-10 17:34:28,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:34:28,752 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:34:28,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:34:28,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:34:28,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:34:28,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:34:28" (1/1) ... [2021-03-10 17:34:28,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146e3325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:28, skipping insertion in model container [2021-03-10 17:34:28,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:34:28" (1/1) ... [2021-03-10 17:34:28,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:34:28,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:34:28,976 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i[949,962] [2021-03-10 17:34:29,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:34:29,117 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:34:29,124 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i[949,962] [2021-03-10 17:34:29,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:34:29,209 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:34:29,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29 WrapperNode [2021-03-10 17:34:29,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:34:29,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:34:29,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:34:29,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:34:29,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:34:29,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:34:29,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:34:29,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:34:29,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (1/1) ... [2021-03-10 17:34:29,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:34:29,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:34:29,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:34:29,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:34:29,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (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 [2021-03-10 17:34:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:34:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:34:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:34:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-10 17:34:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-10 17:34:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:34:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:34:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:34:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:34:29,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:34:29,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:34:29,568 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:34:29,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:34:29 BoogieIcfgContainer [2021-03-10 17:34:29,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:34:29,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:34:29,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:34:29,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:34:29,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:34:28" (1/3) ... [2021-03-10 17:34:29,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d21dad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:34:29, skipping insertion in model container [2021-03-10 17:34:29,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:34:29" (2/3) ... [2021-03-10 17:34:29,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d21dad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:34:29, skipping insertion in model container [2021-03-10 17:34:29,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:34:29" (3/3) ... [2021-03-10 17:34:29,575 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2021-03-10 17:34:29,578 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:34:29,579 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:34:29,582 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:34:29,582 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:34:29,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,619 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,619 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,620 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,621 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,621 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,621 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,621 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,627 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,627 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,627 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,627 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:34:29,637 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:34:29,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-10 17:34:29,669 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:34:29,669 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:34:29,669 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:34:29,669 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:34:29,669 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:34:29,669 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:34:29,669 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:34:29,669 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:34:29,680 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 87 transitions, 194 flow [2021-03-10 17:34:34,975 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49021 states, 49019 states have (on average 4.388441216671087) internal successors, (215117), 49020 states have internal predecessors, (215117), 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) [2021-03-10 17:34:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 49021 states, 49019 states have (on average 4.388441216671087) internal successors, (215117), 49020 states have internal predecessors, (215117), 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) [2021-03-10 17:34:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-03-10 17:34:35,117 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:35,117 INFO L519 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] [2021-03-10 17:34:35,118 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:35,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1468949887, now seen corresponding path program 1 times [2021-03-10 17:34:35,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:35,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808706439] [2021-03-10 17:34:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:35,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808706439] [2021-03-10 17:34:35,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:35,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:35,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999944681] [2021-03-10 17:34:35,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:35,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:35,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:35,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:35,721 INFO L87 Difference]: Start difference. First operand has 49021 states, 49019 states have (on average 4.388441216671087) internal successors, (215117), 49020 states have internal predecessors, (215117), 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 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:36,583 INFO L93 Difference]: Finished difference Result 66409 states and 285209 transitions. [2021-03-10 17:34:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:34:36,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-03-10 17:34:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:36,732 INFO L225 Difference]: With dead ends: 66409 [2021-03-10 17:34:36,732 INFO L226 Difference]: Without dead ends: 21301 [2021-03-10 17:34:36,733 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 161.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:34:37,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21301 states. [2021-03-10 17:34:37,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21301 to 21301. [2021-03-10 17:34:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21301 states, 21300 states have (on average 4.212065727699531) internal successors, (89717), 21300 states have internal predecessors, (89717), 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) [2021-03-10 17:34:37,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21301 states to 21301 states and 89717 transitions. [2021-03-10 17:34:37,892 INFO L78 Accepts]: Start accepts. Automaton has 21301 states and 89717 transitions. Word has length 45 [2021-03-10 17:34:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:37,893 INFO L480 AbstractCegarLoop]: Abstraction has 21301 states and 89717 transitions. [2021-03-10 17:34:37,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 21301 states and 89717 transitions. [2021-03-10 17:34:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-03-10 17:34:37,916 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:37,916 INFO L519 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] [2021-03-10 17:34:37,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:34:37,916 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:37,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:37,917 INFO L82 PathProgramCache]: Analyzing trace with hash 558507202, now seen corresponding path program 1 times [2021-03-10 17:34:37,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:37,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547392395] [2021-03-10 17:34:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:38,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547392395] [2021-03-10 17:34:38,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:38,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:38,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029337859] [2021-03-10 17:34:38,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:38,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:38,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:38,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:38,019 INFO L87 Difference]: Start difference. First operand 21301 states and 89717 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-03-10 17:34:38,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:38,499 INFO L93 Difference]: Finished difference Result 24181 states and 100961 transitions. [2021-03-10 17:34:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:38,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-03-10 17:34:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:38,564 INFO L225 Difference]: With dead ends: 24181 [2021-03-10 17:34:38,564 INFO L226 Difference]: Without dead ends: 19141 [2021-03-10 17:34:38,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 259.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:34:38,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19141 states. [2021-03-10 17:34:39,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19141 to 19141. [2021-03-10 17:34:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19141 states, 19140 states have (on average 4.183333333333334) internal successors, (80069), 19140 states have internal predecessors, (80069), 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) [2021-03-10 17:34:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19141 states to 19141 states and 80069 transitions. [2021-03-10 17:34:39,279 INFO L78 Accepts]: Start accepts. Automaton has 19141 states and 80069 transitions. Word has length 47 [2021-03-10 17:34:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:39,279 INFO L480 AbstractCegarLoop]: Abstraction has 19141 states and 80069 transitions. [2021-03-10 17:34:39,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-03-10 17:34:39,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19141 states and 80069 transitions. [2021-03-10 17:34:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 17:34:39,308 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:39,308 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:34:39,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:34:39,308 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:39,314 INFO L82 PathProgramCache]: Analyzing trace with hash -396721027, now seen corresponding path program 1 times [2021-03-10 17:34:39,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:39,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632083434] [2021-03-10 17:34:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:39,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632083434] [2021-03-10 17:34:39,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:39,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:39,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333949203] [2021-03-10 17:34:39,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:39,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:39,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:39,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:39,448 INFO L87 Difference]: Start difference. First operand 19141 states and 80069 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:39,751 INFO L93 Difference]: Finished difference Result 27381 states and 113451 transitions. [2021-03-10 17:34:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:39,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-03-10 17:34:39,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:39,806 INFO L225 Difference]: With dead ends: 27381 [2021-03-10 17:34:39,806 INFO L226 Difference]: Without dead ends: 14121 [2021-03-10 17:34:39,807 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 109.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 17:34:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14121 states. [2021-03-10 17:34:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14121 to 14121. [2021-03-10 17:34:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14121 states, 14120 states have (on average 4.082082152974504) internal successors, (57639), 14120 states have internal predecessors, (57639), 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) [2021-03-10 17:34:40,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14121 states to 14121 states and 57639 transitions. [2021-03-10 17:34:40,270 INFO L78 Accepts]: Start accepts. Automaton has 14121 states and 57639 transitions. Word has length 49 [2021-03-10 17:34:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:40,271 INFO L480 AbstractCegarLoop]: Abstraction has 14121 states and 57639 transitions. [2021-03-10 17:34:40,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 14121 states and 57639 transitions. [2021-03-10 17:34:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-03-10 17:34:40,295 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:40,295 INFO L519 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] [2021-03-10 17:34:40,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:34:40,295 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:40,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:40,296 INFO L82 PathProgramCache]: Analyzing trace with hash -429884610, now seen corresponding path program 1 times [2021-03-10 17:34:40,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:40,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557973592] [2021-03-10 17:34:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:40,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:40,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557973592] [2021-03-10 17:34:40,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:40,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:34:40,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435307229] [2021-03-10 17:34:40,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:34:40,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:40,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:34:40,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:34:40,407 INFO L87 Difference]: Start difference. First operand 14121 states and 57639 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2021-03-10 17:34:40,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:40,776 INFO L93 Difference]: Finished difference Result 19801 states and 80383 transitions. [2021-03-10 17:34:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:40,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 [2021-03-10 17:34:40,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:40,807 INFO L225 Difference]: With dead ends: 19801 [2021-03-10 17:34:40,807 INFO L226 Difference]: Without dead ends: 9901 [2021-03-10 17:34:40,807 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 99.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:34:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2021-03-10 17:34:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 9901. [2021-03-10 17:34:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9900 states have (on average 4.017070707070707) internal successors, (39769), 9900 states have internal predecessors, (39769), 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) [2021-03-10 17:34:41,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 39769 transitions. [2021-03-10 17:34:41,020 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 39769 transitions. Word has length 51 [2021-03-10 17:34:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:41,020 INFO L480 AbstractCegarLoop]: Abstraction has 9901 states and 39769 transitions. [2021-03-10 17:34:41,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2021-03-10 17:34:41,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 39769 transitions. [2021-03-10 17:34:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:34:41,043 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:41,043 INFO L519 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] [2021-03-10 17:34:41,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:34:41,043 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:41,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:41,044 INFO L82 PathProgramCache]: Analyzing trace with hash -464840599, now seen corresponding path program 1 times [2021-03-10 17:34:41,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:41,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329309854] [2021-03-10 17:34:41,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:41,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329309854] [2021-03-10 17:34:41,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:41,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:34:41,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596634910] [2021-03-10 17:34:41,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:34:41,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:41,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:34:41,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:34:41,136 INFO L87 Difference]: Start difference. First operand 9901 states and 39769 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:41,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:41,362 INFO L93 Difference]: Finished difference Result 13653 states and 54401 transitions. [2021-03-10 17:34:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:34:41,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-03-10 17:34:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:41,393 INFO L225 Difference]: With dead ends: 13653 [2021-03-10 17:34:41,394 INFO L226 Difference]: Without dead ends: 9557 [2021-03-10 17:34:41,394 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 68.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:34:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2021-03-10 17:34:41,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 9557. [2021-03-10 17:34:41,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 9556 states have (on average 3.998430305567183) internal successors, (38209), 9556 states have internal predecessors, (38209), 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) [2021-03-10 17:34:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 38209 transitions. [2021-03-10 17:34:41,564 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 38209 transitions. Word has length 53 [2021-03-10 17:34:41,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:41,564 INFO L480 AbstractCegarLoop]: Abstraction has 9557 states and 38209 transitions. [2021-03-10 17:34:41,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 38209 transitions. [2021-03-10 17:34:41,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-03-10 17:34:41,579 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:41,579 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:34:41,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:34:41,579 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:41,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:41,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1707604209, now seen corresponding path program 1 times [2021-03-10 17:34:41,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:41,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079840133] [2021-03-10 17:34:41,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:41,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079840133] [2021-03-10 17:34:41,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:41,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:41,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953542092] [2021-03-10 17:34:41,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:41,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:41,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:41,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:41,648 INFO L87 Difference]: Start difference. First operand 9557 states and 38209 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:41,791 INFO L93 Difference]: Finished difference Result 11981 states and 47181 transitions. [2021-03-10 17:34:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:34:41,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-03-10 17:34:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:41,814 INFO L225 Difference]: With dead ends: 11981 [2021-03-10 17:34:41,814 INFO L226 Difference]: Without dead ends: 8141 [2021-03-10 17:34:41,815 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 81.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:34:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2021-03-10 17:34:42,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 8141. [2021-03-10 17:34:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8141 states, 8140 states have (on average 3.919041769041769) internal successors, (31901), 8140 states have internal predecessors, (31901), 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) [2021-03-10 17:34:42,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8141 states to 8141 states and 31901 transitions. [2021-03-10 17:34:42,075 INFO L78 Accepts]: Start accepts. Automaton has 8141 states and 31901 transitions. Word has length 54 [2021-03-10 17:34:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:42,075 INFO L480 AbstractCegarLoop]: Abstraction has 8141 states and 31901 transitions. [2021-03-10 17:34:42,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:42,076 INFO L276 IsEmpty]: Start isEmpty. Operand 8141 states and 31901 transitions. [2021-03-10 17:34:42,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 17:34:42,089 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:42,089 INFO L519 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] [2021-03-10 17:34:42,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:34:42,089 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:42,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:42,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1182973838, now seen corresponding path program 1 times [2021-03-10 17:34:42,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:42,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969563627] [2021-03-10 17:34:42,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:42,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969563627] [2021-03-10 17:34:42,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:42,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:34:42,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878230876] [2021-03-10 17:34:42,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:34:42,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:42,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:34:42,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:34:42,159 INFO L87 Difference]: Start difference. First operand 8141 states and 31901 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2021-03-10 17:34:42,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:42,320 INFO L93 Difference]: Finished difference Result 8474 states and 32453 transitions. [2021-03-10 17:34:42,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:34:42,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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 [2021-03-10 17:34:42,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:42,333 INFO L225 Difference]: With dead ends: 8474 [2021-03-10 17:34:42,334 INFO L226 Difference]: Without dead ends: 5594 [2021-03-10 17:34:42,334 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 93.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:34:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2021-03-10 17:34:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5594. [2021-03-10 17:34:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5593 states have (on average 3.7625603432862507) internal successors, (21044), 5593 states have internal predecessors, (21044), 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) [2021-03-10 17:34:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 21044 transitions. [2021-03-10 17:34:42,443 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 21044 transitions. Word has length 55 [2021-03-10 17:34:42,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:42,444 INFO L480 AbstractCegarLoop]: Abstraction has 5594 states and 21044 transitions. [2021-03-10 17:34:42,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2021-03-10 17:34:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 21044 transitions. [2021-03-10 17:34:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:34:42,453 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:42,453 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:34:42,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:34:42,453 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:42,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:42,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2001147313, now seen corresponding path program 1 times [2021-03-10 17:34:42,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:42,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532000055] [2021-03-10 17:34:42,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:42,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532000055] [2021-03-10 17:34:42,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:42,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:42,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305001894] [2021-03-10 17:34:42,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:42,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:42,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:42,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:42,521 INFO L87 Difference]: Start difference. First operand 5594 states and 21044 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:42,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:42,641 INFO L93 Difference]: Finished difference Result 9352 states and 35211 transitions. [2021-03-10 17:34:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:34:42,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-03-10 17:34:42,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:42,655 INFO L225 Difference]: With dead ends: 9352 [2021-03-10 17:34:42,655 INFO L226 Difference]: Without dead ends: 6242 [2021-03-10 17:34:42,656 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:34:42,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2021-03-10 17:34:42,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5594. [2021-03-10 17:34:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5593 states have (on average 3.6983729662077596) internal successors, (20685), 5593 states have internal predecessors, (20685), 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) [2021-03-10 17:34:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 20685 transitions. [2021-03-10 17:34:42,837 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 20685 transitions. Word has length 57 [2021-03-10 17:34:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:42,837 INFO L480 AbstractCegarLoop]: Abstraction has 5594 states and 20685 transitions. [2021-03-10 17:34:42,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 20685 transitions. [2021-03-10 17:34:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:34:42,847 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:42,847 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:34:42,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:34:42,848 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:42,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:42,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1796399525, now seen corresponding path program 1 times [2021-03-10 17:34:42,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:42,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124156033] [2021-03-10 17:34:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:42,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124156033] [2021-03-10 17:34:42,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:42,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:34:42,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098821045] [2021-03-10 17:34:42,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:34:42,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:42,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:34:42,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:34:42,928 INFO L87 Difference]: Start difference. First operand 5594 states and 20685 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:43,012 INFO L93 Difference]: Finished difference Result 7409 states and 27100 transitions. [2021-03-10 17:34:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:34:43,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-03-10 17:34:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:43,021 INFO L225 Difference]: With dead ends: 7409 [2021-03-10 17:34:43,021 INFO L226 Difference]: Without dead ends: 4011 [2021-03-10 17:34:43,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:34:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4011 states. [2021-03-10 17:34:43,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4011 to 3525. [2021-03-10 17:34:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3525 states, 3524 states have (on average 3.5192962542565267) internal successors, (12402), 3524 states have internal predecessors, (12402), 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) [2021-03-10 17:34:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 12402 transitions. [2021-03-10 17:34:43,086 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 12402 transitions. Word has length 57 [2021-03-10 17:34:43,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:43,086 INFO L480 AbstractCegarLoop]: Abstraction has 3525 states and 12402 transitions. [2021-03-10 17:34:43,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:43,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 12402 transitions. [2021-03-10 17:34:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:34:43,091 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:34:43,091 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:34:43,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:34:43,091 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:34:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:34:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1674860713, now seen corresponding path program 2 times [2021-03-10 17:34:43,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:34:43,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368117022] [2021-03-10 17:34:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:34:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:34:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:34:43,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368117022] [2021-03-10 17:34:43,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:34:43,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-10 17:34:43,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339970480] [2021-03-10 17:34:43,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 17:34:43,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:34:43,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 17:34:43,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-10 17:34:43,183 INFO L87 Difference]: Start difference. First operand 3525 states and 12402 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:43,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:34:43,273 INFO L93 Difference]: Finished difference Result 2229 states and 7569 transitions. [2021-03-10 17:34:43,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:34:43,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-03-10 17:34:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:34:43,273 INFO L225 Difference]: With dead ends: 2229 [2021-03-10 17:34:43,273 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:34:43,273 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 81.4ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:34:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:34:43,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:34:43,274 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) [2021-03-10 17:34:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:34:43,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-03-10 17:34:43,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:34:43,274 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:34:43,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:34:43,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:34:43,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:34:43,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:34:43,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:34:43 BasicIcfg [2021-03-10 17:34:43,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:34:43,278 INFO L168 Benchmark]: Toolchain (without parser) took 14529.08 ms. Allocated memory was 255.9 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 234.9 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.0 GB. [2021-03-10 17:34:43,279 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:34:43,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.38 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 234.3 MB in the beginning and 316.4 MB in the end (delta: -82.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:43,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 354.4 MB. Free memory was 316.4 MB in the beginning and 315.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:34:43,279 INFO L168 Benchmark]: Boogie Preprocessor took 24.85 ms. Allocated memory is still 354.4 MB. Free memory was 314.3 MB in the beginning and 313.6 MB in the end (delta: 708.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:34:43,280 INFO L168 Benchmark]: RCFGBuilder took 289.52 ms. Allocated memory is still 354.4 MB. Free memory was 312.9 MB in the beginning and 289.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:43,280 INFO L168 Benchmark]: TraceAbstraction took 13707.17 ms. Allocated memory was 354.4 MB in the beginning and 8.0 GB in the end (delta: 7.6 GB). Free memory was 288.4 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 975.3 MB. Max. memory is 16.0 GB. [2021-03-10 17:34:43,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 457.38 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 234.3 MB in the beginning and 316.4 MB in the end (delta: -82.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 354.4 MB. Free memory was 316.4 MB in the beginning and 315.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.85 ms. Allocated memory is still 354.4 MB. Free memory was 314.3 MB in the beginning and 313.6 MB in the end (delta: 708.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 289.52 ms. Allocated memory is still 354.4 MB. Free memory was 312.9 MB in the beginning and 289.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 13707.17 ms. Allocated memory was 354.4 MB in the beginning and 8.0 GB in the end (delta: 7.6 GB). Free memory was 288.4 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 975.3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13608.2ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 288.3ms, AutomataDifference: 3327.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5305.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1119 SDtfs, 2165 SDslu, 3547 SDs, 0 SdLazy, 447 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 285.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1079.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49021occurred in iteration=0, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3323.7ms AutomataMinimizationTime, 10 MinimizatonAttempts, 1134 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.8ms SsaConstructionTime, 179.9ms SatisfiabilityAnalysisTime, 817.5ms InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 515 ConstructedInterpolants, 0 QuantifiedInterpolants, 2203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...