/usr/bin/java -Xmx8000000000 -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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:01:20,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:01:20,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:01:21,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:01:21,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:01:21,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:01:21,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:01:21,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:01:21,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:01:21,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:01:21,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:01:21,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:01:21,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:01:21,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:01:21,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:01:21,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:01:21,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:01:21,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:01:21,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:01:21,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:01:21,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:01:21,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:01:21,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:01:21,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:01:21,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:01:21,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:01:21,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:01:21,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:01:21,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:01:21,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:01:21,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:01:21,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:01:21,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:01:21,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:01:21,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:01:21,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:01:21,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:01:21,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:01:21,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:01:21,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:01:21,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:01:21,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:01:21,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:01:21,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:01:21,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:01:21,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:01:21,072 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:01:21,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:01:21,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:01:21,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:01:21,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:01:21,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:01:21,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:01:21,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:01:21,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:01:21,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:01:21,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:01:21,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:01:21,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:01:21,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:01:21,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:01:21,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:01:21,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:01:21,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:01:21,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:01:21,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:01:21,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:01:21,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:01:21,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:01:21,077 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:01:21,077 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:01:21,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:01:21,077 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:01:21,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:01:21,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:01:21,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:01:21,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:01:21,405 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:01:21,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-06 01:01:21,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/454385461/0b2808935eaf461680fc3deb9f475ae2/FLAG6e0214510 [2020-10-06 01:01:22,033 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:01:22,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-06 01:01:22,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/454385461/0b2808935eaf461680fc3deb9f475ae2/FLAG6e0214510 [2020-10-06 01:01:22,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/454385461/0b2808935eaf461680fc3deb9f475ae2 [2020-10-06 01:01:22,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:01:22,307 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:01:22,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:01:22,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:01:22,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:01:22,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:01:22" (1/1) ... [2020-10-06 01:01:22,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aef83f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:22, skipping insertion in model container [2020-10-06 01:01:22,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:01:22" (1/1) ... [2020-10-06 01:01:22,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:01:22,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:01:22,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:01:22,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:01:22,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:01:23,007 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:01:23,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23 WrapperNode [2020-10-06 01:01:23,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:01:23,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:01:23,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:01:23,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:01:23,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:01:23,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:01:23,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:01:23,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:01:23,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... [2020-10-06 01:01:23,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:01:23,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:01:23,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:01:23,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:01:23,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:01:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:01:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:01:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:01:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:01:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:01:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:01:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:01:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:01:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:01:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:01:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:01:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:01:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:01:23,164 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:01:23,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:01:23,525 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:01:23,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:01:23 BoogieIcfgContainer [2020-10-06 01:01:23,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:01:23,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:01:23,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:01:23,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:01:23,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:01:22" (1/3) ... [2020-10-06 01:01:23,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522196e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:01:23, skipping insertion in model container [2020-10-06 01:01:23,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:23" (2/3) ... [2020-10-06 01:01:23,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522196e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:01:23, skipping insertion in model container [2020-10-06 01:01:23,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:01:23" (3/3) ... [2020-10-06 01:01:23,536 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-10-06 01:01:23,548 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:01:23,548 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:01:23,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:01:23,556 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:01:23,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,590 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,590 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,592 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,592 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,594 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,600 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,601 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,608 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:23,629 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:01:23,651 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:01:23,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:01:23,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:01:23,652 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:01:23,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:01:23,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:01:23,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:01:23,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:01:23,669 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-06 01:01:23,670 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-06 01:01:23,721 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-06 01:01:23,721 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:01:23,730 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:01:23,736 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-06 01:01:23,764 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-06 01:01:23,764 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:01:23,766 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:01:23,768 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:01:23,769 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:01:24,871 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-06 01:01:24,979 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-10-06 01:01:24,979 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-06 01:01:24,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-06 01:01:25,013 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-06 01:01:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-06 01:01:25,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:01:25,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:25,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:25,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:25,033 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-06 01:01:25,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:25,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994242435] [2020-10-06 01:01:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:25,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994242435] [2020-10-06 01:01:25,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:25,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:25,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [870234516] [2020-10-06 01:01:25,234 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:25,237 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:25,251 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:01:25,252 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:25,256 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:25,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:01:25,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:25,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:01:25,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:01:25,275 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-06 01:01:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:25,296 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-06 01:01:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:01:25,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-06 01:01:25,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:25,315 INFO L225 Difference]: With dead ends: 362 [2020-10-06 01:01:25,315 INFO L226 Difference]: Without dead ends: 298 [2020-10-06 01:01:25,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:01:25,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-06 01:01:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-06 01:01:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-06 01:01:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-06 01:01:25,394 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-06 01:01:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:25,395 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-06 01:01:25,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:01:25,398 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-06 01:01:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:01:25,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:25,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:25,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:01:25,401 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:25,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:25,402 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-06 01:01:25,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:25,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383035432] [2020-10-06 01:01:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:25,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383035432] [2020-10-06 01:01:25,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:25,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:25,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1767908892] [2020-10-06 01:01:25,561 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:25,562 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:25,564 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 01:01:25,564 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:25,564 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:25,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:25,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:25,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:25,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:25,567 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-06 01:01:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:25,601 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-06 01:01:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:25,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:01:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:25,604 INFO L225 Difference]: With dead ends: 330 [2020-10-06 01:01:25,605 INFO L226 Difference]: Without dead ends: 266 [2020-10-06 01:01:25,606 INFO L675 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 [2020-10-06 01:01:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-06 01:01:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-06 01:01:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-06 01:01:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-06 01:01:25,624 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-06 01:01:25,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:25,624 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-06 01:01:25,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:25,625 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-06 01:01:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:01:25,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:25,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:25,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:01:25,627 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-10-06 01:01:25,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:25,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900464069] [2020-10-06 01:01:25,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:25,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900464069] [2020-10-06 01:01:25,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:25,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:25,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [278816376] [2020-10-06 01:01:25,716 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:25,716 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:25,718 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-10-06 01:01:25,718 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:25,725 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:25,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:25,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:25,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:25,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:25,727 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-06 01:01:25,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:25,795 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-06 01:01:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:01:25,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-06 01:01:25,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:25,797 INFO L225 Difference]: With dead ends: 290 [2020-10-06 01:01:25,798 INFO L226 Difference]: Without dead ends: 242 [2020-10-06 01:01:25,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:01:25,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-06 01:01:25,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-06 01:01:25,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-06 01:01:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-06 01:01:25,811 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-06 01:01:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:25,811 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-06 01:01:25,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-06 01:01:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:01:25,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:25,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:25,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:01:25,814 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:25,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:25,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-10-06 01:01:25,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:25,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090306479] [2020-10-06 01:01:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:25,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090306479] [2020-10-06 01:01:25,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:25,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:25,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1688591925] [2020-10-06 01:01:25,873 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:25,874 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:25,876 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-06 01:01:25,876 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:25,933 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:25,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:25,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:25,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:25,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:25,935 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-10-06 01:01:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:25,955 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-10-06 01:01:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:25,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:01:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:25,958 INFO L225 Difference]: With dead ends: 260 [2020-10-06 01:01:25,958 INFO L226 Difference]: Without dead ends: 224 [2020-10-06 01:01:25,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:25,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-06 01:01:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-06 01:01:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-06 01:01:25,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-10-06 01:01:25,966 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-10-06 01:01:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:25,967 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-10-06 01:01:25,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:25,967 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-10-06 01:01:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:01:25,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:25,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:25,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:01:25,969 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:25,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:25,970 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-10-06 01:01:25,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:25,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127683486] [2020-10-06 01:01:25,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:26,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127683486] [2020-10-06 01:01:26,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:26,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:26,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [72792899] [2020-10-06 01:01:26,029 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:26,030 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:26,033 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-10-06 01:01:26,033 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:26,137 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:26,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:26,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:26,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:26,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:26,138 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-10-06 01:01:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:26,182 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-10-06 01:01:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:26,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-06 01:01:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:26,184 INFO L225 Difference]: With dead ends: 293 [2020-10-06 01:01:26,184 INFO L226 Difference]: Without dead ends: 146 [2020-10-06 01:01:26,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:26,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-06 01:01:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-06 01:01:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-06 01:01:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-06 01:01:26,190 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-06 01:01:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:26,190 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-06 01:01:26,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-06 01:01:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:01:26,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:26,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:26,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:01:26,192 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:26,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:26,192 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-10-06 01:01:26,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:26,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165403997] [2020-10-06 01:01:26,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:26,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165403997] [2020-10-06 01:01:26,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:26,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:26,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [726336455] [2020-10-06 01:01:26,299 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:26,303 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:26,308 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-10-06 01:01:26,308 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:26,400 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:26,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:26,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:26,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:26,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:26,402 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-06 01:01:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:26,444 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-10-06 01:01:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:26,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 01:01:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:26,446 INFO L225 Difference]: With dead ends: 188 [2020-10-06 01:01:26,446 INFO L226 Difference]: Without dead ends: 74 [2020-10-06 01:01:26,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-06 01:01:26,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-06 01:01:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-06 01:01:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-06 01:01:26,449 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-10-06 01:01:26,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:26,450 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-06 01:01:26,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-06 01:01:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:01:26,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:26,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:26,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:01:26,451 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:26,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:26,452 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-06 01:01:26,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:26,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397569762] [2020-10-06 01:01:26,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:26,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397569762] [2020-10-06 01:01:26,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:26,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:26,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1041373732] [2020-10-06 01:01:26,502 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:26,504 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:26,506 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-06 01:01:26,507 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:26,513 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:26,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:26,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:26,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:26,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:26,514 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-06 01:01:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:26,549 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-06 01:01:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:26,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-06 01:01:26,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:26,550 INFO L225 Difference]: With dead ends: 62 [2020-10-06 01:01:26,550 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:01:26,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:01:26,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:01:26,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:01:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:01:26,552 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 01:01:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:26,552 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:01:26,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:26,553 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:01:26,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:01:26,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:01:26,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:01:26 BasicIcfg [2020-10-06 01:01:26,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:01:26,559 INFO L168 Benchmark]: Toolchain (without parser) took 4252.65 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 101.6 MB in the beginning and 170.4 MB in the end (delta: -68.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,560 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.10 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 160.8 MB in the end (delta: -59.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.73 ms. Allocated memory is still 202.4 MB. Free memory was 160.8 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,563 INFO L168 Benchmark]: Boogie Preprocessor took 29.48 ms. Allocated memory is still 202.4 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,564 INFO L168 Benchmark]: RCFGBuilder took 438.52 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 134.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,565 INFO L168 Benchmark]: TraceAbstraction took 3028.38 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 134.3 MB in the beginning and 170.4 MB in the end (delta: -36.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:26,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.10 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 160.8 MB in the end (delta: -59.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.73 ms. Allocated memory is still 202.4 MB. Free memory was 160.8 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.48 ms. Allocated memory is still 202.4 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.52 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 134.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3028.38 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 134.3 MB in the beginning and 170.4 MB in the end (delta: -36.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - 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 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 151 SDtfs, 152 SDslu, 227 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...