/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/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:14:23,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:14:23,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:14:23,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:14:23,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:14:23,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:14:23,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:14:23,797 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 [2021-06-05 00:14:23,838 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:14:23,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:14:23,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:14:23,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:14:23,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:14:23,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:14:23,842 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:14:23,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:14:23,843 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:14:23,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:14:23,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:14:23,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:14:23,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:14:23,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:14:23,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:14:23,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:14:23,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:14:23,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:14:23,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:14:23,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:14:24,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:14:24,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:14:24,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:14:24,140 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:14:24,140 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:14:24,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-06-05 00:14:24,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59991500f/239cb6561c9c40348fd0c9be244d524d/FLAG151285086 [2021-06-05 00:14:24,681 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:14:24,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-06-05 00:14:24,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59991500f/239cb6561c9c40348fd0c9be244d524d/FLAG151285086 [2021-06-05 00:14:24,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59991500f/239cb6561c9c40348fd0c9be244d524d [2021-06-05 00:14:24,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:14:24,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:14:24,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:14:24,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:14:24,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:14:24,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:14:24" (1/1) ... [2021-06-05 00:14:24,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ee3af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:24, skipping insertion in model container [2021-06-05 00:14:24,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:14:24" (1/1) ... [2021-06-05 00:14:24,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:14:24,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:14:24,970 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i[950,963] [2021-06-05 00:14:25,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:14:25,158 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:14:25,169 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i[950,963] [2021-06-05 00:14:25,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:14:25,255 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:14:25,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25 WrapperNode [2021-06-05 00:14:25,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:14:25,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:14:25,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:14:25,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:14:25,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:14:25,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:14:25,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:14:25,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:14:25,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... [2021-06-05 00:14:25,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:14:25,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:14:25,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:14:25,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:14:25,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:14:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:14:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:14:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:14:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:14:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:14:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:14:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:14:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:14:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:14:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:14:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 00:14:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 00:14:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:14:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:14:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:14:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:14:25,427 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:14:25,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:14:25,851 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:14:25,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:14:25 BoogieIcfgContainer [2021-06-05 00:14:25,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:14:25,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:14:25,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:14:25,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:14:25,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:14:24" (1/3) ... [2021-06-05 00:14:25,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3566529a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:14:25, skipping insertion in model container [2021-06-05 00:14:25,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:14:25" (2/3) ... [2021-06-05 00:14:25,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3566529a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:14:25, skipping insertion in model container [2021-06-05 00:14:25,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:14:25" (3/3) ... [2021-06-05 00:14:25,859 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-06-05 00:14:25,864 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:14:25,865 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:14:25,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:14:25,865 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:14:25,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,905 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,910 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,910 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,910 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,910 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,910 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,911 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,911 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,911 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,911 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,913 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,913 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,913 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,916 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,916 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,926 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,930 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,930 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,930 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,931 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:14:25,933 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:14:25,948 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 00:14:25,962 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:14:25,962 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:14:25,962 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:14:25,962 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:14:25,962 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:14:25,963 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:14:25,963 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:14:25,963 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:14:25,972 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 216 flow [2021-06-05 00:14:31,254 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:14:31,411 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:31,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:31,412 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:31,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:31,420 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-05 00:14:31,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:31,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763938560] [2021-06-05 00:14:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:32,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:32,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763938560] [2021-06-05 00:14:32,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763938560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:32,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:32,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:32,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224266519] [2021-06-05 00:14:32,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:32,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:32,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:32,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:32,148 INFO L87 Difference]: Start difference. First operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:33,948 INFO L93 Difference]: Finished difference Result 101003 states and 428395 transitions. [2021-06-05 00:14:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:14:33,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 00:14:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:34,373 INFO L225 Difference]: With dead ends: 101003 [2021-06-05 00:14:34,374 INFO L226 Difference]: Without dead ends: 31943 [2021-06-05 00:14:34,375 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 337.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:14:34,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31943 states. [2021-06-05 00:14:35,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31943 to 27623. [2021-06-05 00:14:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27623 states, 27622 states have (on average 4.142893345883716) internal successors, (114435), 27622 states have internal predecessors, (114435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27623 states to 27623 states and 114435 transitions. [2021-06-05 00:14:35,898 INFO L78 Accepts]: Start accepts. Automaton has 27623 states and 114435 transitions. Word has length 56 [2021-06-05 00:14:35,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:35,899 INFO L482 AbstractCegarLoop]: Abstraction has 27623 states and 114435 transitions. [2021-06-05 00:14:35,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:35,900 INFO L276 IsEmpty]: Start isEmpty. Operand 27623 states and 114435 transitions. [2021-06-05 00:14:35,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:14:35,958 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:35,958 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:35,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:14:35,958 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:35,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:35,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1559850451, now seen corresponding path program 1 times [2021-06-05 00:14:35,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:35,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509232445] [2021-06-05 00:14:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:36,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:36,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509232445] [2021-06-05 00:14:36,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509232445] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:36,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:36,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:36,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140694015] [2021-06-05 00:14:36,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:36,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:36,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:36,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:36,085 INFO L87 Difference]: Start difference. First operand 27623 states and 114435 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:36,764 INFO L93 Difference]: Finished difference Result 38687 states and 158623 transitions. [2021-06-05 00:14:36,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:14:36,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 00:14:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:36,942 INFO L225 Difference]: With dead ends: 38687 [2021-06-05 00:14:36,942 INFO L226 Difference]: Without dead ends: 30959 [2021-06-05 00:14:36,943 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 189.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:14:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2021-06-05 00:14:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26543. [2021-06-05 00:14:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26543 states, 26542 states have (on average 4.122937231557532) internal successors, (109431), 26542 states have internal predecessors, (109431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26543 states to 26543 states and 109431 transitions. [2021-06-05 00:14:38,143 INFO L78 Accepts]: Start accepts. Automaton has 26543 states and 109431 transitions. Word has length 58 [2021-06-05 00:14:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:38,143 INFO L482 AbstractCegarLoop]: Abstraction has 26543 states and 109431 transitions. [2021-06-05 00:14:38,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 26543 states and 109431 transitions. [2021-06-05 00:14:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 00:14:38,188 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:38,188 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:38,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:14:38,189 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:38,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1159192084, now seen corresponding path program 1 times [2021-06-05 00:14:38,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:38,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013895229] [2021-06-05 00:14:38,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:38,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:38,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013895229] [2021-06-05 00:14:38,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013895229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:38,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:38,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:38,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81865917] [2021-06-05 00:14:38,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:38,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:38,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:38,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:38,354 INFO L87 Difference]: Start difference. First operand 26543 states and 109431 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:39,003 INFO L93 Difference]: Finished difference Result 34415 states and 140543 transitions. [2021-06-05 00:14:39,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:14:39,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2021-06-05 00:14:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:39,103 INFO L225 Difference]: With dead ends: 34415 [2021-06-05 00:14:39,104 INFO L226 Difference]: Without dead ends: 29519 [2021-06-05 00:14:39,104 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 184.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:14:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29519 states. [2021-06-05 00:14:40,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29519 to 25103. [2021-06-05 00:14:40,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25103 states, 25102 states have (on average 4.10799936260059) internal successors, (103119), 25102 states have internal predecessors, (103119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25103 states to 25103 states and 103119 transitions. [2021-06-05 00:14:40,126 INFO L78 Accepts]: Start accepts. Automaton has 25103 states and 103119 transitions. Word has length 60 [2021-06-05 00:14:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:40,126 INFO L482 AbstractCegarLoop]: Abstraction has 25103 states and 103119 transitions. [2021-06-05 00:14:40,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states and 103119 transitions. [2021-06-05 00:14:40,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:14:40,168 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:40,169 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:40,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:14:40,169 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:40,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:40,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1105894485, now seen corresponding path program 1 times [2021-06-05 00:14:40,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:40,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199716743] [2021-06-05 00:14:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:40,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:40,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199716743] [2021-06-05 00:14:40,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199716743] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:40,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:40,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:40,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028258940] [2021-06-05 00:14:40,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:40,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:40,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:40,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:40,310 INFO L87 Difference]: Start difference. First operand 25103 states and 103119 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:41,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:41,031 INFO L93 Difference]: Finished difference Result 36719 states and 149687 transitions. [2021-06-05 00:14:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:14:41,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:14:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:41,117 INFO L225 Difference]: With dead ends: 36719 [2021-06-05 00:14:41,117 INFO L226 Difference]: Without dead ends: 25775 [2021-06-05 00:14:41,117 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 451.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:14:41,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25775 states. [2021-06-05 00:14:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25775 to 20135. [2021-06-05 00:14:41,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20135 states, 20134 states have (on average 4.0717691467169965) internal successors, (81981), 20134 states have internal predecessors, (81981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:41,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20135 states to 20135 states and 81981 transitions. [2021-06-05 00:14:41,959 INFO L78 Accepts]: Start accepts. Automaton has 20135 states and 81981 transitions. Word has length 61 [2021-06-05 00:14:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:41,959 INFO L482 AbstractCegarLoop]: Abstraction has 20135 states and 81981 transitions. [2021-06-05 00:14:41,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 20135 states and 81981 transitions. [2021-06-05 00:14:42,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 00:14:42,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:42,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:42,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:14:42,001 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:42,002 INFO L82 PathProgramCache]: Analyzing trace with hash -204466803, now seen corresponding path program 1 times [2021-06-05 00:14:42,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:42,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966987683] [2021-06-05 00:14:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:42,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:42,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966987683] [2021-06-05 00:14:42,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966987683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:42,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:42,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:14:42,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829226525] [2021-06-05 00:14:42,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:14:42,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:42,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:14:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:14:42,183 INFO L87 Difference]: Start difference. First operand 20135 states and 81981 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:42,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:42,459 INFO L93 Difference]: Finished difference Result 34895 states and 141159 transitions. [2021-06-05 00:14:42,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:14:42,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-06-05 00:14:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:42,511 INFO L225 Difference]: With dead ends: 34895 [2021-06-05 00:14:42,511 INFO L226 Difference]: Without dead ends: 20700 [2021-06-05 00:14:42,511 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 87.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:14:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20700 states. [2021-06-05 00:14:43,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20700 to 17820. [2021-06-05 00:14:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17820 states, 17819 states have (on average 4.047421291879455) internal successors, (72121), 17819 states have internal predecessors, (72121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 72121 transitions. [2021-06-05 00:14:43,185 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 72121 transitions. Word has length 62 [2021-06-05 00:14:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:43,185 INFO L482 AbstractCegarLoop]: Abstraction has 17820 states and 72121 transitions. [2021-06-05 00:14:43,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 72121 transitions. [2021-06-05 00:14:43,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 00:14:43,212 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:43,212 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:43,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:14:43,212 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:43,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1605957499, now seen corresponding path program 2 times [2021-06-05 00:14:43,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:43,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816468050] [2021-06-05 00:14:43,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:43,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:43,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816468050] [2021-06-05 00:14:43,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816468050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:43,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:43,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:43,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453155593] [2021-06-05 00:14:43,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:43,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:43,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:43,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:43,307 INFO L87 Difference]: Start difference. First operand 17820 states and 72121 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:43,577 INFO L93 Difference]: Finished difference Result 26260 states and 105035 transitions. [2021-06-05 00:14:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:14:43,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-06-05 00:14:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:43,611 INFO L225 Difference]: With dead ends: 26260 [2021-06-05 00:14:43,611 INFO L226 Difference]: Without dead ends: 13000 [2021-06-05 00:14:43,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 113.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 00:14:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2021-06-05 00:14:44,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 13000. [2021-06-05 00:14:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13000 states, 12999 states have (on average 3.95484268020617) internal successors, (51409), 12999 states have internal predecessors, (51409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 51409 transitions. [2021-06-05 00:14:44,145 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 51409 transitions. Word has length 62 [2021-06-05 00:14:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:44,145 INFO L482 AbstractCegarLoop]: Abstraction has 13000 states and 51409 transitions. [2021-06-05 00:14:44,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 51409 transitions. [2021-06-05 00:14:44,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 00:14:44,166 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:44,167 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:44,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:14:44,167 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:44,167 INFO L82 PathProgramCache]: Analyzing trace with hash 262666992, now seen corresponding path program 1 times [2021-06-05 00:14:44,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:44,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855310801] [2021-06-05 00:14:44,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:44,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:44,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855310801] [2021-06-05 00:14:44,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855310801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:44,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:44,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:14:44,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752414471] [2021-06-05 00:14:44,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:14:44,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:44,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:14:44,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:14:44,253 INFO L87 Difference]: Start difference. First operand 13000 states and 51409 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:44,470 INFO L93 Difference]: Finished difference Result 17372 states and 68227 transitions. [2021-06-05 00:14:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:14:44,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2021-06-05 00:14:44,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:44,512 INFO L225 Difference]: With dead ends: 17372 [2021-06-05 00:14:44,512 INFO L226 Difference]: Without dead ends: 12636 [2021-06-05 00:14:44,512 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 93.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:14:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12636 states. [2021-06-05 00:14:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12636 to 12636. [2021-06-05 00:14:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12635 states have (on average 3.9381875741986545) internal successors, (49759), 12635 states have internal predecessors, (49759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 49759 transitions. [2021-06-05 00:14:44,865 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 49759 transitions. Word has length 64 [2021-06-05 00:14:44,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:44,866 INFO L482 AbstractCegarLoop]: Abstraction has 12636 states and 49759 transitions. [2021-06-05 00:14:44,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 49759 transitions. [2021-06-05 00:14:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 00:14:44,884 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:44,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:44,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:14:44,884 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:44,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:44,885 INFO L82 PathProgramCache]: Analyzing trace with hash -680334294, now seen corresponding path program 1 times [2021-06-05 00:14:44,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:44,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16067848] [2021-06-05 00:14:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:44,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:45,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16067848] [2021-06-05 00:14:45,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16067848] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:45,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:45,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:45,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513533659] [2021-06-05 00:14:45,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:45,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:45,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:45,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:45,002 INFO L87 Difference]: Start difference. First operand 12636 states and 49759 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:45,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:45,223 INFO L93 Difference]: Finished difference Result 15534 states and 60340 transitions. [2021-06-05 00:14:45,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:14:45,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2021-06-05 00:14:45,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:45,257 INFO L225 Difference]: With dead ends: 15534 [2021-06-05 00:14:45,257 INFO L226 Difference]: Without dead ends: 11070 [2021-06-05 00:14:45,258 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 100.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:14:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-06-05 00:14:45,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 11070. [2021-06-05 00:14:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11070 states, 11069 states have (on average 3.8690035233535096) internal successors, (42826), 11069 states have internal predecessors, (42826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11070 states to 11070 states and 42826 transitions. [2021-06-05 00:14:45,706 INFO L78 Accepts]: Start accepts. Automaton has 11070 states and 42826 transitions. Word has length 65 [2021-06-05 00:14:45,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:45,706 INFO L482 AbstractCegarLoop]: Abstraction has 11070 states and 42826 transitions. [2021-06-05 00:14:45,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:45,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11070 states and 42826 transitions. [2021-06-05 00:14:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:14:45,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:45,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:45,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:14:45,723 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:45,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1718539969, now seen corresponding path program 1 times [2021-06-05 00:14:45,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:45,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224213235] [2021-06-05 00:14:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:45,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:45,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:45,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224213235] [2021-06-05 00:14:45,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224213235] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:45,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:45,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:14:45,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639391846] [2021-06-05 00:14:45,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:14:45,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:45,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:14:45,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:14:45,824 INFO L87 Difference]: Start difference. First operand 11070 states and 42826 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:46,025 INFO L93 Difference]: Finished difference Result 11547 states and 43804 transitions. [2021-06-05 00:14:46,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:14:46,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 00:14:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:46,048 INFO L225 Difference]: With dead ends: 11547 [2021-06-05 00:14:46,048 INFO L226 Difference]: Without dead ends: 8163 [2021-06-05 00:14:46,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 109.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:14:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2021-06-05 00:14:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 8163. [2021-06-05 00:14:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8162 states have (on average 3.747733398676795) internal successors, (30589), 8162 states have internal predecessors, (30589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 30589 transitions. [2021-06-05 00:14:46,208 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 30589 transitions. Word has length 66 [2021-06-05 00:14:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:46,209 INFO L482 AbstractCegarLoop]: Abstraction has 8163 states and 30589 transitions. [2021-06-05 00:14:46,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 30589 transitions. [2021-06-05 00:14:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 00:14:46,220 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:46,220 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:46,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:14:46,220 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:46,221 INFO L82 PathProgramCache]: Analyzing trace with hash 492191662, now seen corresponding path program 1 times [2021-06-05 00:14:46,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:46,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365955912] [2021-06-05 00:14:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:46,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:46,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365955912] [2021-06-05 00:14:46,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365955912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:46,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:46,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:46,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514653261] [2021-06-05 00:14:46,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:46,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:46,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:46,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:46,293 INFO L87 Difference]: Start difference. First operand 8163 states and 30589 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:46,420 INFO L93 Difference]: Finished difference Result 11715 states and 44012 transitions. [2021-06-05 00:14:46,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:14:46,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2021-06-05 00:14:46,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:46,438 INFO L225 Difference]: With dead ends: 11715 [2021-06-05 00:14:46,438 INFO L226 Difference]: Without dead ends: 7501 [2021-06-05 00:14:46,439 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 92.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:14:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2021-06-05 00:14:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 6853. [2021-06-05 00:14:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6852 states have (on average 3.7286923525977818) internal successors, (25549), 6852 states have internal predecessors, (25549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 25549 transitions. [2021-06-05 00:14:46,560 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 25549 transitions. Word has length 68 [2021-06-05 00:14:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:46,560 INFO L482 AbstractCegarLoop]: Abstraction has 6853 states and 25549 transitions. [2021-06-05 00:14:46,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 25549 transitions. [2021-06-05 00:14:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 00:14:46,665 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:46,665 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:46,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:14:46,666 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:46,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:46,666 INFO L82 PathProgramCache]: Analyzing trace with hash 132401632, now seen corresponding path program 2 times [2021-06-05 00:14:46,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:46,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170311987] [2021-06-05 00:14:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:46,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:46,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170311987] [2021-06-05 00:14:46,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170311987] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:46,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:46,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 00:14:46,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105332618] [2021-06-05 00:14:46,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 00:14:46,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:46,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 00:14:46,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 00:14:46,750 INFO L87 Difference]: Start difference. First operand 6853 states and 25549 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:46,953 INFO L93 Difference]: Finished difference Result 5935 states and 21715 transitions. [2021-06-05 00:14:46,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 00:14:46,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 68 [2021-06-05 00:14:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:46,961 INFO L225 Difference]: With dead ends: 5935 [2021-06-05 00:14:46,961 INFO L226 Difference]: Without dead ends: 3187 [2021-06-05 00:14:46,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 132.3ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-05 00:14:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2021-06-05 00:14:47,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3187. [2021-06-05 00:14:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3186 states have (on average 3.5505335844318897) internal successors, (11312), 3186 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 11312 transitions. [2021-06-05 00:14:47,011 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 11312 transitions. Word has length 68 [2021-06-05 00:14:47,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:47,012 INFO L482 AbstractCegarLoop]: Abstraction has 3187 states and 11312 transitions. [2021-06-05 00:14:47,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 11312 transitions. [2021-06-05 00:14:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 00:14:47,015 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:14:47,015 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:14:47,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 00:14:47,016 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:14:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:14:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash -599850687, now seen corresponding path program 1 times [2021-06-05 00:14:47,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:14:47,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591150114] [2021-06-05 00:14:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:14:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:14:47,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:14:47,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:14:47,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591150114] [2021-06-05 00:14:47,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591150114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:14:47,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:14:47,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:14:47,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090001300] [2021-06-05 00:14:47,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:14:47,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:14:47,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:14:47,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:14:47,087 INFO L87 Difference]: Start difference. First operand 3187 states and 11312 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:14:47,165 INFO L93 Difference]: Finished difference Result 3025 states and 10718 transitions. [2021-06-05 00:14:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 00:14:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-05 00:14:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:14:47,166 INFO L225 Difference]: With dead ends: 3025 [2021-06-05 00:14:47,166 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:14:47,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 81.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:14:47,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:14:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:14:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:14:47,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-05 00:14:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:14:47,167 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:14:47,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:14:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:14:47,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:14:47,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 00:14:47,169 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:14:47,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:14:47 BasicIcfg [2021-06-05 00:14:47,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:14:47,172 INFO L168 Benchmark]: Toolchain (without parser) took 22446.29 ms. Allocated memory was 339.7 MB in the beginning and 11.1 GB in the end (delta: 10.7 GB). Free memory was 302.9 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-06-05 00:14:47,172 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 339.7 MB. Free memory was 320.9 MB in the beginning and 320.9 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:14:47,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.81 ms. Allocated memory is still 339.7 MB. Free memory was 302.6 MB in the beginning and 300.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:14:47,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 339.7 MB. Free memory was 300.4 MB in the beginning and 298.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:14:47,172 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 339.7 MB. Free memory was 298.3 MB in the beginning and 297.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:14:47,173 INFO L168 Benchmark]: RCFGBuilder took 516.25 ms. Allocated memory is still 339.7 MB. Free memory was 297.2 MB in the beginning and 270.0 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:14:47,173 INFO L168 Benchmark]: TraceAbstraction took 21316.55 ms. Allocated memory was 339.7 MB in the beginning and 11.1 GB in the end (delta: 10.7 GB). Free memory was 268.9 MB in the beginning and 9.4 GB in the end (delta: -9.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-06-05 00:14:47,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 339.7 MB. Free memory was 320.9 MB in the beginning and 320.9 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 527.81 ms. Allocated memory is still 339.7 MB. Free memory was 302.6 MB in the beginning and 300.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 339.7 MB. Free memory was 300.4 MB in the beginning and 298.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.60 ms. Allocated memory is still 339.7 MB. Free memory was 298.3 MB in the beginning and 297.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 516.25 ms. Allocated memory is still 339.7 MB. Free memory was 297.2 MB in the beginning and 270.0 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21316.55 ms. Allocated memory was 339.7 MB in the beginning and 11.1 GB in the end (delta: 10.7 GB). Free memory was 268.9 MB in the beginning and 9.4 GB in the end (delta: -9.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21207.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 448.5ms, AutomataDifference: 6556.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5291.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1558 SDtfs, 2812 SDslu, 5634 SDs, 0 SdLazy, 600 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 525.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1973.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51815occurred in iteration=0, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6913.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 22320 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.7ms SsaConstructionTime, 364.0ms SatisfiabilityAnalysisTime, 1288.6ms InterpolantComputationTime, 760 NumberOfCodeBlocks, 760 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 3268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...