/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/safe035_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:43:01,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:43:01,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:43:01,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:43:01,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:43:01,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:43:01,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:43:01,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:43:01,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:43:01,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:43:01,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:43:01,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:43:01,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:43:01,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:43:01,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:43:01,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:43:01,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:43:01,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:43:01,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:43:01,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:43:01,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:43:01,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:43:01,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:43:01,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:43:01,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:43:01,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:43:01,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:43:01,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:43:01,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:43:01,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:43:01,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:43:01,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:43:01,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:43:01,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:43:01,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:43:01,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:43:01,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:43:01,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:43:01,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:43:01,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:43:01,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:43:01,431 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 [2020-10-22 00:43:01,470 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:43:01,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:43:01,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:43:01,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:43:01,474 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:43:01,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:43:01,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:43:01,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:43:01,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:43:01,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:43:01,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:43:01,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:43:01,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:43:01,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:43:01,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:43:01,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:43:01,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:43:01,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:43:01,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:43:01,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:43:01,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:43:01,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:43:01,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:43:01,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:43:01,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:43:01,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:43:01,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:43:01,480 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:43:01,481 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:43:01,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:43:01,481 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:43:01,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:43:01,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:43:01,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:43:01,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:43:01,793 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:43:01,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2020-10-22 00:43:01,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47e188e46/d76a134429b04a3f87cc3beb9c350e3d/FLAG5f2835577 [2020-10-22 00:43:02,397 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:43:02,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2020-10-22 00:43:02,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47e188e46/d76a134429b04a3f87cc3beb9c350e3d/FLAG5f2835577 [2020-10-22 00:43:02,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47e188e46/d76a134429b04a3f87cc3beb9c350e3d [2020-10-22 00:43:02,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:43:02,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:43:02,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:02,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:43:02,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:43:02,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:02" (1/1) ... [2020-10-22 00:43:02,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f116fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:02, skipping insertion in model container [2020-10-22 00:43:02,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:02" (1/1) ... [2020-10-22 00:43:02,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:43:02,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:43:03,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:03,362 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:43:03,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:03,512 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:43:03,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03 WrapperNode [2020-10-22 00:43:03,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:03,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:03,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:43:03,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:43:03,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:03,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:43:03,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:43:03,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:43:03,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (1/1) ... [2020-10-22 00:43:03,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:43:03,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:43:03,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:43:03,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:43:03,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (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 [2020-10-22 00:43:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:43:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:43:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:43:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:43:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:43:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:43:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:43:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:43:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:43:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:43:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:43:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:43:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:43:03,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:43:03,677 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:43:04,093 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:43:04,093 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:43:04,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:04 BoogieIcfgContainer [2020-10-22 00:43:04,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:43:04,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:43:04,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:43:04,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:43:04,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:43:02" (1/3) ... [2020-10-22 00:43:04,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726b7224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:04, skipping insertion in model container [2020-10-22 00:43:04,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:03" (2/3) ... [2020-10-22 00:43:04,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726b7224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:04, skipping insertion in model container [2020-10-22 00:43:04,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:04" (3/3) ... [2020-10-22 00:43:04,106 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2020-10-22 00:43:04,119 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:43:04,119 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:43:04,128 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:43:04,129 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:43:04,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,170 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,170 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:04,187 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:43:04,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:43:04,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:43:04,220 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:43:04,220 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:43:04,220 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:43:04,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:43:04,220 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:43:04,220 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:43:04,221 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:43:04,233 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:43:04,234 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:04,236 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:04,238 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:04,287 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 00:43:04,287 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:43:04,293 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:43:04,296 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:43:05,943 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-22 00:43:06,226 INFO L131 LiptonReduction]: Checked pairs total: 2778 [2020-10-22 00:43:06,227 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-10-22 00:43:06,234 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 00:43:06,267 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 00:43:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 00:43:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:43:06,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:06,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:06,280 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:06,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:06,286 INFO L82 PathProgramCache]: Analyzing trace with hash -345538935, now seen corresponding path program 1 times [2020-10-22 00:43:06,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:06,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090704108] [2020-10-22 00:43:06,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:06,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090704108] [2020-10-22 00:43:06,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:06,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:06,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1168949179] [2020-10-22 00:43:06,487 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:06,490 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:06,506 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:43:06,506 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:06,511 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:06,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:43:06,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:06,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:43:06,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:43:06,532 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 00:43:06,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:06,560 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 00:43:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:43:06,565 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 00:43:06,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:06,583 INFO L225 Difference]: With dead ends: 362 [2020-10-22 00:43:06,583 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 00:43:06,585 INFO L677 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 [2020-10-22 00:43:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 00:43:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 00:43:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 00:43:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 00:43:06,686 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 00:43:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:06,688 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 00:43:06,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:43:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 00:43:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:43:06,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:06,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:06,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:43:06,690 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:06,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:06,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2121797576, now seen corresponding path program 1 times [2020-10-22 00:43:06,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:06,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39961302] [2020-10-22 00:43:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:06,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39961302] [2020-10-22 00:43:06,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:06,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:06,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [351839705] [2020-10-22 00:43:06,825 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:06,826 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:06,828 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 00:43:06,828 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:06,829 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:06,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:43:06,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:06,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:43:06,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:43:06,831 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 00:43:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:06,864 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-10-22 00:43:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:06,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 00:43:06,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:06,868 INFO L225 Difference]: With dead ends: 298 [2020-10-22 00:43:06,869 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 00:43:06,870 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 [2020-10-22 00:43:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 00:43:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 00:43:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 00:43:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-10-22 00:43:06,900 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-10-22 00:43:06,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:06,901 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-10-22 00:43:06,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:43:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-10-22 00:43:06,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:43:06,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:06,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:06,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:43:06,906 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:06,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:06,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1060758680, now seen corresponding path program 1 times [2020-10-22 00:43:06,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:06,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765493972] [2020-10-22 00:43:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:07,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765493972] [2020-10-22 00:43:07,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:07,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:07,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1275556900] [2020-10-22 00:43:07,071 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:07,072 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:07,074 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2020-10-22 00:43:07,074 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:07,104 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:07,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:43:07,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:07,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:43:07,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:43:07,106 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 4 states. [2020-10-22 00:43:07,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:07,145 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-10-22 00:43:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:07,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 00:43:07,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:07,147 INFO L225 Difference]: With dead ends: 346 [2020-10-22 00:43:07,148 INFO L226 Difference]: Without dead ends: 164 [2020-10-22 00:43:07,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:07,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-22 00:43:07,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-22 00:43:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-22 00:43:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-10-22 00:43:07,158 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-10-22 00:43:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:07,159 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-10-22 00:43:07,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:43:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-10-22 00:43:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:43:07,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:07,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:07,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:43:07,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:07,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1476250237, now seen corresponding path program 1 times [2020-10-22 00:43:07,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:07,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380688988] [2020-10-22 00:43:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:07,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380688988] [2020-10-22 00:43:07,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:07,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:07,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [953872112] [2020-10-22 00:43:07,239 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:07,240 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:07,243 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-22 00:43:07,243 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:07,287 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:43:07,348 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:43:07,363 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3229#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 00:43:07,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:07,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:07,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:07,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:07,364 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand 5 states. [2020-10-22 00:43:07,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:07,441 INFO L93 Difference]: Finished difference Result 139 states and 326 transitions. [2020-10-22 00:43:07,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:07,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:43:07,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:07,449 INFO L225 Difference]: With dead ends: 139 [2020-10-22 00:43:07,449 INFO L226 Difference]: Without dead ends: 87 [2020-10-22 00:43:07,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:07,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-22 00:43:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-22 00:43:07,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-22 00:43:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-10-22 00:43:07,465 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 12 [2020-10-22 00:43:07,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:07,465 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-10-22 00:43:07,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-10-22 00:43:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:43:07,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:07,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:07,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:43:07,469 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:07,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:07,470 INFO L82 PathProgramCache]: Analyzing trace with hash 809328863, now seen corresponding path program 1 times [2020-10-22 00:43:07,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:07,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120877522] [2020-10-22 00:43:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:07,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120877522] [2020-10-22 00:43:07,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:07,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:43:07,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1699023106] [2020-10-22 00:43:07,589 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:07,591 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:07,598 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 37 transitions. [2020-10-22 00:43:07,598 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:07,642 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3553#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:43:07,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:43:07,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:07,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:43:07,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:07,644 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand 7 states. [2020-10-22 00:43:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:07,702 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-10-22 00:43:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:07,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 00:43:07,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:07,708 INFO L225 Difference]: With dead ends: 76 [2020-10-22 00:43:07,709 INFO L226 Difference]: Without dead ends: 67 [2020-10-22 00:43:07,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:43:07,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-22 00:43:07,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-22 00:43:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-22 00:43:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-10-22 00:43:07,718 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-10-22 00:43:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:07,718 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-10-22 00:43:07,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:43:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-10-22 00:43:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:43:07,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:07,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:07,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:43:07,720 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:07,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:07,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1097223765, now seen corresponding path program 1 times [2020-10-22 00:43:07,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:07,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691682732] [2020-10-22 00:43:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:07,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691682732] [2020-10-22 00:43:07,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:07,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:43:07,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1280476954] [2020-10-22 00:43:07,850 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:07,853 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:07,862 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 68 transitions. [2020-10-22 00:43:07,862 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:08,009 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:08,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:08,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:08,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:08,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:08,010 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand 5 states. [2020-10-22 00:43:08,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:08,047 INFO L93 Difference]: Finished difference Result 87 states and 167 transitions. [2020-10-22 00:43:08,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:08,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:43:08,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:08,049 INFO L225 Difference]: With dead ends: 87 [2020-10-22 00:43:08,049 INFO L226 Difference]: Without dead ends: 40 [2020-10-22 00:43:08,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-22 00:43:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-22 00:43:08,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-22 00:43:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-22 00:43:08,052 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-10-22 00:43:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:08,053 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-22 00:43:08,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-22 00:43:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:43:08,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:08,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:08,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:43:08,054 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:08,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:08,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1731427213, now seen corresponding path program 2 times [2020-10-22 00:43:08,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:08,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65829421] [2020-10-22 00:43:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:08,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65829421] [2020-10-22 00:43:08,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:08,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:43:08,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2134277714] [2020-10-22 00:43:08,159 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:08,161 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:08,167 INFO L252 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-10-22 00:43:08,167 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:08,238 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:08,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:08,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:08,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:08,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:08,239 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-22 00:43:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:08,274 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-10-22 00:43:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:08,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:43:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:08,275 INFO L225 Difference]: With dead ends: 39 [2020-10-22 00:43:08,275 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:43:08,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:08,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:43:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:43:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:43:08,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:43:08,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:43:08,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:08,277 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:43:08,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:43:08,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:43:08,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:43:08,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:43:08 BasicIcfg [2020-10-22 00:43:08,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:43:08,284 INFO L168 Benchmark]: Toolchain (without parser) took 5538.76 ms. Allocated memory was 146.8 MB in the beginning and 278.9 MB in the end (delta: 132.1 MB). Free memory was 101.6 MB in the beginning and 220.4 MB in the end (delta: -118.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:08,284 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:43:08,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.38 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 156.5 MB in the end (delta: -55.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:08,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:08,287 INFO L168 Benchmark]: Boogie Preprocessor took 31.08 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:08,288 INFO L168 Benchmark]: RCFGBuilder took 500.47 ms. Allocated memory is still 202.9 MB. Free memory was 152.5 MB in the beginning and 128.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:08,288 INFO L168 Benchmark]: TraceAbstraction took 4184.31 ms. Allocated memory was 202.9 MB in the beginning and 278.9 MB in the end (delta: 76.0 MB). Free memory was 127.9 MB in the beginning and 220.4 MB in the end (delta: -92.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:43:08,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.38 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 156.5 MB in the end (delta: -55.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.08 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.47 ms. Allocated memory is still 202.9 MB. Free memory was 152.5 MB in the beginning and 128.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4184.31 ms. Allocated memory was 202.9 MB in the beginning and 278.9 MB in the end (delta: 76.0 MB). Free memory was 127.9 MB in the beginning and 220.4 MB in the end (delta: -92.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 777 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2778 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 158 SDtfs, 124 SDslu, 249 SDs, 0 SdLazy, 103 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 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, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3104 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...