/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:35:11,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:35:11,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:35:11,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:35:11,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:35:11,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:35:11,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:35:11,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:35:11,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:35:11,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:35:11,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:35:11,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:35:11,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:35:11,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:35:11,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:35:11,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:35:11,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:35:11,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:35:11,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:35:11,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:35:11,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:35:11,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:35:11,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:35:11,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:35:11,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:35:11,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:35:11,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:35:11,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:35:11,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:35:11,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:35:11,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:35:11,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:35:11,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:35:11,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:35:11,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:35:11,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:35:11,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:35:11,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:35:11,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:35:11,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:35:11,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:35:11,936 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:35:11,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:35:11,937 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:35:11,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:35:11,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:35:11,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:35:11,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:35:11,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:35:11,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:35:11,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:35:11,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:35:11,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:35:11,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:35:11,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:35:11,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:35:11,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:35:11,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:35:11,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:35:11,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:35:11,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:35:11,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:35:11,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:35:11,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:35:11,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:35:11,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:35:11,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:35:12,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:35:12,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:35:12,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:35:12,240 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:35:12,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:35:12,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-15 18:35:12,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e07590/1ca3a8bf9164492092c9d9c8408e0c76/FLAG7f6ead41a [2020-10-15 18:35:12,870 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:35:12,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-15 18:35:12,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e07590/1ca3a8bf9164492092c9d9c8408e0c76/FLAG7f6ead41a [2020-10-15 18:35:13,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e07590/1ca3a8bf9164492092c9d9c8408e0c76 [2020-10-15 18:35:13,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:35:13,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:35:13,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:13,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:35:13,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:35:13,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571cca8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13, skipping insertion in model container [2020-10-15 18:35:13,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:35:13,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:35:13,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:13,636 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:35:13,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:13,756 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:35:13,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13 WrapperNode [2020-10-15 18:35:13,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:13,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:13,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:35:13,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:35:13,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:13,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:35:13,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:35:13,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:35:13,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (1/1) ... [2020-10-15 18:35:13,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:35:13,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:35:13,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:35:13,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:35:13,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (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 [2020-10-15 18:35:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:35:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:35:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:35:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:35:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:35:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:35:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:35:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:35:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:35:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:35:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:35:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:35:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:35:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:35:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:35:13,960 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:35:14,288 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:35:14,289 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:35:14,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:14 BoogieIcfgContainer [2020-10-15 18:35:14,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:35:14,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:35:14,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:35:14,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:35:14,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:35:13" (1/3) ... [2020-10-15 18:35:14,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61839eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:14, skipping insertion in model container [2020-10-15 18:35:14,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13" (2/3) ... [2020-10-15 18:35:14,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61839eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:14, skipping insertion in model container [2020-10-15 18:35:14,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:14" (3/3) ... [2020-10-15 18:35:14,301 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-10-15 18:35:14,313 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:35:14,313 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:35:14,321 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:35:14,322 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:35:14,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,372 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,375 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,375 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,377 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,377 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,377 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,379 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,379 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,380 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,383 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,384 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,384 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,384 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,394 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,397 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,397 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:14,415 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:35:14,437 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:35:14,438 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:35:14,438 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:35:14,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:35:14,438 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:35:14,438 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:35:14,439 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:35:14,439 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:35:14,454 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:35:14,457 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 18:35:14,461 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 18:35:14,463 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-15 18:35:14,513 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-15 18:35:14,514 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:35:14,520 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 18:35:14,523 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 18:35:16,186 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-15 18:35:16,428 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-15 18:35:16,428 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-15 18:35:16,435 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-15 18:35:16,481 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-15 18:35:16,483 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-15 18:35:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:35:16,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:16,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:16,495 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:16,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:16,501 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-15 18:35:16,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:16,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996031036] [2020-10-15 18:35:16,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:16,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996031036] [2020-10-15 18:35:16,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:16,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:35:16,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908217811] [2020-10-15 18:35:16,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:16,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:16,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:16,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:16,767 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-15 18:35:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:16,828 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-15 18:35:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:16,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 18:35:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:16,855 INFO L225 Difference]: With dead ends: 670 [2020-10-15 18:35:16,855 INFO L226 Difference]: Without dead ends: 526 [2020-10-15 18:35:16,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-15 18:35:16,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-15 18:35:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 18:35:16,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-15 18:35:16,974 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-15 18:35:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:16,976 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-15 18:35:16,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-15 18:35:16,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:35:16,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:16,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:16,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:35:16,979 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:16,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-15 18:35:16,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:16,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979949697] [2020-10-15 18:35:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979949697] [2020-10-15 18:35:17,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:17,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117229457] [2020-10-15 18:35:17,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:17,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:17,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:17,061 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-15 18:35:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,095 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-15 18:35:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:35:17,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:35:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,100 INFO L225 Difference]: With dead ends: 682 [2020-10-15 18:35:17,100 INFO L226 Difference]: Without dead ends: 394 [2020-10-15 18:35:17,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-15 18:35:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-15 18:35:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 18:35:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-15 18:35:17,125 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-15 18:35:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,126 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-15 18:35:17,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-15 18:35:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:35:17,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:35:17,129 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-15 18:35:17,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551532158] [2020-10-15 18:35:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551532158] [2020-10-15 18:35:17,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:35:17,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685870330] [2020-10-15 18:35:17,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:17,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:17,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:17,217 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-15 18:35:17,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,229 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-15 18:35:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:17,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 18:35:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,233 INFO L225 Difference]: With dead ends: 386 [2020-10-15 18:35:17,233 INFO L226 Difference]: Without dead ends: 386 [2020-10-15 18:35:17,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-15 18:35:17,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-15 18:35:17,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-15 18:35:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-15 18:35:17,249 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-15 18:35:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,250 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-15 18:35:17,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-15 18:35:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:35:17,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:35:17,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-15 18:35:17,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512710615] [2020-10-15 18:35:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512710615] [2020-10-15 18:35:17,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:17,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381429558] [2020-10-15 18:35:17,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:17,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:17,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:17,296 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-15 18:35:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,313 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-15 18:35:17,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:17,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 18:35:17,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,317 INFO L225 Difference]: With dead ends: 466 [2020-10-15 18:35:17,317 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 18:35:17,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 18:35:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-15 18:35:17,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-15 18:35:17,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-15 18:35:17,331 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-15 18:35:17,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,332 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-15 18:35:17,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:17,332 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-15 18:35:17,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:35:17,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:35:17,334 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-15 18:35:17,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622472714] [2020-10-15 18:35:17,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622472714] [2020-10-15 18:35:17,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:35:17,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784685399] [2020-10-15 18:35:17,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:17,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:17,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:17,394 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-15 18:35:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,417 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-15 18:35:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:17,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 18:35:17,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,420 INFO L225 Difference]: With dead ends: 358 [2020-10-15 18:35:17,420 INFO L226 Difference]: Without dead ends: 358 [2020-10-15 18:35:17,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-15 18:35:17,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-15 18:35:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-15 18:35:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-15 18:35:17,432 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-15 18:35:17,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,433 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-15 18:35:17,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-15 18:35:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:35:17,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:35:17,434 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-15 18:35:17,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484657962] [2020-10-15 18:35:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484657962] [2020-10-15 18:35:17,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:17,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375046228] [2020-10-15 18:35:17,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:17,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:17,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:17,489 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-15 18:35:17,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,511 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-15 18:35:17,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:35:17,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:35:17,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,514 INFO L225 Difference]: With dead ends: 514 [2020-10-15 18:35:17,514 INFO L226 Difference]: Without dead ends: 274 [2020-10-15 18:35:17,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:17,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-15 18:35:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-15 18:35:17,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-15 18:35:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-15 18:35:17,524 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-15 18:35:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,524 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-15 18:35:17,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-15 18:35:17,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:35:17,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:35:17,526 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-15 18:35:17,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029875573] [2020-10-15 18:35:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029875573] [2020-10-15 18:35:17,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:17,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119652519] [2020-10-15 18:35:17,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:17,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:17,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:17,595 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-15 18:35:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,628 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-15 18:35:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:17,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:35:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,631 INFO L225 Difference]: With dead ends: 345 [2020-10-15 18:35:17,631 INFO L226 Difference]: Without dead ends: 252 [2020-10-15 18:35:17,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-15 18:35:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-15 18:35:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 18:35:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-15 18:35:17,640 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-15 18:35:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,640 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-15 18:35:17,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-15 18:35:17,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:35:17,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:35:17,642 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-15 18:35:17,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973584980] [2020-10-15 18:35:17,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973584980] [2020-10-15 18:35:17,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:17,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928646985] [2020-10-15 18:35:17,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:17,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:17,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:17,707 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-15 18:35:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,779 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-15 18:35:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:35:17,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:35:17,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,782 INFO L225 Difference]: With dead ends: 278 [2020-10-15 18:35:17,783 INFO L226 Difference]: Without dead ends: 203 [2020-10-15 18:35:17,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-15 18:35:17,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-15 18:35:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-15 18:35:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-15 18:35:17,795 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-15 18:35:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,796 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-15 18:35:17,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:17,796 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-15 18:35:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:35:17,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:35:17,804 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,804 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-15 18:35:17,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284954960] [2020-10-15 18:35:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:17,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284954960] [2020-10-15 18:35:17,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:17,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:17,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315008947] [2020-10-15 18:35:17,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:35:17,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:17,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:35:17,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:17,924 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-15 18:35:17,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:17,979 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-15 18:35:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:35:17,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-15 18:35:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:17,981 INFO L225 Difference]: With dead ends: 200 [2020-10-15 18:35:17,981 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 18:35:17,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 18:35:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-15 18:35:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 18:35:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-15 18:35:17,987 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-15 18:35:17,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:17,987 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-15 18:35:17,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:35:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-15 18:35:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:35:17,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:17,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:17,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:35:17,989 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:17,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-15 18:35:17,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:17,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039199576] [2020-10-15 18:35:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:18,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039199576] [2020-10-15 18:35:18,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:18,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:18,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233079271] [2020-10-15 18:35:18,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:18,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:18,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:18,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:18,025 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-15 18:35:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:18,042 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-15 18:35:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:18,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 18:35:18,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:18,043 INFO L225 Difference]: With dead ends: 194 [2020-10-15 18:35:18,044 INFO L226 Difference]: Without dead ends: 127 [2020-10-15 18:35:18,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:18,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-15 18:35:18,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-15 18:35:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-15 18:35:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-15 18:35:18,048 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-15 18:35:18,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:18,048 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-15 18:35:18,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-15 18:35:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:35:18,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:18,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:18,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:35:18,050 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:18,050 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-15 18:35:18,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:18,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832599173] [2020-10-15 18:35:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:18,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832599173] [2020-10-15 18:35:18,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:18,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:35:18,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238031499] [2020-10-15 18:35:18,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:35:18,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:18,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:35:18,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:18,117 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-15 18:35:18,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:18,179 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-15 18:35:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:35:18,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-15 18:35:18,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:18,181 INFO L225 Difference]: With dead ends: 120 [2020-10-15 18:35:18,181 INFO L226 Difference]: Without dead ends: 71 [2020-10-15 18:35:18,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:35:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-15 18:35:18,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-15 18:35:18,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-15 18:35:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-15 18:35:18,187 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-15 18:35:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:18,188 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-15 18:35:18,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:35:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-15 18:35:18,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 18:35:18,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:18,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:18,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:35:18,190 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:18,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:18,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-15 18:35:18,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:18,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362559863] [2020-10-15 18:35:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:18,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:18,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362559863] [2020-10-15 18:35:18,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:18,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:18,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857505099] [2020-10-15 18:35:18,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:18,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:18,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:18,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:18,239 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-15 18:35:18,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:18,249 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-15 18:35:18,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:35:18,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-15 18:35:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:18,250 INFO L225 Difference]: With dead ends: 70 [2020-10-15 18:35:18,250 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:35:18,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:18,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:35:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:35:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:35:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:35:18,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-15 18:35:18,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:18,251 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:35:18,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:18,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:35:18,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:35:18,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 18:35:18,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:35:18 BasicIcfg [2020-10-15 18:35:18,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:35:18,257 INFO L168 Benchmark]: Toolchain (without parser) took 5103.01 ms. Allocated memory was 253.2 MB in the beginning and 427.8 MB in the end (delta: 174.6 MB). Free memory was 206.4 MB in the beginning and 317.1 MB in the end (delta: -110.7 MB). Peak memory consumption was 63.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:18,258 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:35:18,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.49 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 206.4 MB in the beginning and 272.7 MB in the end (delta: -66.3 MB). Peak memory consumption was 27.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:18,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 319.3 MB. Free memory was 272.7 MB in the beginning and 270.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:18,260 INFO L168 Benchmark]: Boogie Preprocessor took 58.05 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:18,261 INFO L168 Benchmark]: RCFGBuilder took 417.94 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 243.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:18,261 INFO L168 Benchmark]: TraceAbstraction took 3963.01 ms. Allocated memory was 319.3 MB in the beginning and 427.8 MB in the end (delta: 108.5 MB). Free memory was 243.3 MB in the beginning and 317.1 MB in the end (delta: -73.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:18,265 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 602.49 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 206.4 MB in the beginning and 272.7 MB in the end (delta: -66.3 MB). Peak memory consumption was 27.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 319.3 MB. Free memory was 272.7 MB in the beginning and 270.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 58.05 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 417.94 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 243.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3963.01 ms. Allocated memory was 319.3 MB in the beginning and 427.8 MB in the end (delta: 108.5 MB). Free memory was 243.3 MB in the beginning and 317.1 MB in the end (delta: -73.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...