/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:08:10,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:08:10,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:08:10,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:08:10,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:08:10,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:08:10,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:08:10,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:08:10,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:08:10,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:08:10,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:08:10,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:08:10,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:08:10,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:08:10,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:08:10,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:08:10,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:08:10,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:08:10,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:08:10,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:08:10,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:08:10,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:08:10,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:08:10,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:08:10,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:08:10,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:08:10,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:08:10,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:08:10,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:08:10,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:08:10,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:08:10,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:08:10,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:08:10,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:08:10,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:08:10,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:08:10,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:08:10,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:08:10,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:08:10,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:08:10,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:08:10,634 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:08:10,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:08:10,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:08:10,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:08:10,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:08:10,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:08:10,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:08:10,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:08:10,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:08:10,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:08:10,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:08:10,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:08:10,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:08:10,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:08:10,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:08:10,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:08:10,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:08:10,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:08:10,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:08:10,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:08:10,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:08:10,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:08:10,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:08:10,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:08:10,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:08:10,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:08:10,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:08:10,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:08:10,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:08:10,970 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:08:10,971 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-15 22:08:11,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e497353ab/7590e87d336148919aa726034ecbe9aa/FLAG5e40b38a2 [2020-10-15 22:08:11,492 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:08:11,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-15 22:08:11,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e497353ab/7590e87d336148919aa726034ecbe9aa/FLAG5e40b38a2 [2020-10-15 22:08:11,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e497353ab/7590e87d336148919aa726034ecbe9aa [2020-10-15 22:08:11,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:08:11,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:08:11,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:08:11,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:08:11,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:08:11,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:08:11" (1/1) ... [2020-10-15 22:08:11,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebf64a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:11, skipping insertion in model container [2020-10-15 22:08:11,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:08:11" (1/1) ... [2020-10-15 22:08:11,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:08:11,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:08:12,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:08:12,521 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:08:12,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:08:12,676 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:08:12,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12 WrapperNode [2020-10-15 22:08:12,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:08:12,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:08:12,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:08:12,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:08:12,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:08:12,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:08:12,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:08:12,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:08:12,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... [2020-10-15 22:08:12,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:08:12,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:08:12,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:08:12,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:08:12,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:08:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:08:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:08:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:08:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:08:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:08:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:08:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:08:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:08:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:08:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:08:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:08:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:08:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:08:12,818 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:08:13,174 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:08:13,174 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:08:13,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:08:13 BoogieIcfgContainer [2020-10-15 22:08:13,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:08:13,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:08:13,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:08:13,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:08:13,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:08:11" (1/3) ... [2020-10-15 22:08:13,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bbc3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:08:13, skipping insertion in model container [2020-10-15 22:08:13,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:08:12" (2/3) ... [2020-10-15 22:08:13,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bbc3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:08:13, skipping insertion in model container [2020-10-15 22:08:13,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:08:13" (3/3) ... [2020-10-15 22:08:13,184 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-10-15 22:08:13,195 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:08:13,195 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:08:13,202 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:08:13,203 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:08:13,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,228 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,236 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,246 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,246 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,246 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,246 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:08:13,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:08:13,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:08:13,296 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:08:13,296 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:08:13,296 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:08:13,296 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:08:13,296 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:08:13,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:08:13,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:08:13,308 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:08:13,310 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 22:08:13,313 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 22:08:13,315 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 22:08:13,357 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 22:08:13,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:08:13,363 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:08:13,365 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:08:14,921 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-15 22:08:14,922 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-15 22:08:14,928 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 22:08:14,955 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 22:08:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 22:08:14,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:08:14,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:14,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:14,967 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:14,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:14,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-15 22:08:14,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:14,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083417613] [2020-10-15 22:08:14,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083417613] [2020-10-15 22:08:15,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:08:15,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192439583] [2020-10-15 22:08:15,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:08:15,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:08:15,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,221 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 22:08:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,272 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-15 22:08:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:08:15,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 22:08:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,289 INFO L225 Difference]: With dead ends: 290 [2020-10-15 22:08:15,289 INFO L226 Difference]: Without dead ends: 226 [2020-10-15 22:08:15,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-15 22:08:15,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-15 22:08:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 22:08:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-15 22:08:15,355 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-15 22:08:15,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,356 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-15 22:08:15,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:08:15,356 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-15 22:08:15,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:08:15,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:08:15,358 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-15 22:08:15,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940527342] [2020-10-15 22:08:15,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940527342] [2020-10-15 22:08:15,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:08:15,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646331554] [2020-10-15 22:08:15,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:08:15,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:08:15,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,458 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-15 22:08:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,470 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-15 22:08:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:08:15,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 22:08:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,473 INFO L225 Difference]: With dead ends: 214 [2020-10-15 22:08:15,473 INFO L226 Difference]: Without dead ends: 214 [2020-10-15 22:08:15,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-15 22:08:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-15 22:08:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-15 22:08:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-15 22:08:15,492 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-15 22:08:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,493 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-15 22:08:15,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:08:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-15 22:08:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:08:15,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:08:15,495 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,496 INFO L82 PathProgramCache]: Analyzing trace with hash -2042509488, now seen corresponding path program 1 times [2020-10-15 22:08:15,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872566952] [2020-10-15 22:08:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872566952] [2020-10-15 22:08:15,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:08:15,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040150501] [2020-10-15 22:08:15,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:08:15,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:08:15,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:08:15,551 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-15 22:08:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,574 INFO L93 Difference]: Finished difference Result 254 states and 660 transitions. [2020-10-15 22:08:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:08:15,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 22:08:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,576 INFO L225 Difference]: With dead ends: 254 [2020-10-15 22:08:15,576 INFO L226 Difference]: Without dead ends: 134 [2020-10-15 22:08:15,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:08:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-15 22:08:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-15 22:08:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-15 22:08:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 326 transitions. [2020-10-15 22:08:15,586 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 326 transitions. Word has length 10 [2020-10-15 22:08:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,586 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 326 transitions. [2020-10-15 22:08:15,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:08:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 326 transitions. [2020-10-15 22:08:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:08:15,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:08:15,588 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1680323254, now seen corresponding path program 1 times [2020-10-15 22:08:15,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944162011] [2020-10-15 22:08:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944162011] [2020-10-15 22:08:15,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:08:15,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413228231] [2020-10-15 22:08:15,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:08:15,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:08:15,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,642 INFO L87 Difference]: Start difference. First operand 134 states and 326 transitions. Second operand 3 states. [2020-10-15 22:08:15,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,646 INFO L93 Difference]: Finished difference Result 128 states and 307 transitions. [2020-10-15 22:08:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:08:15,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 22:08:15,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,649 INFO L225 Difference]: With dead ends: 128 [2020-10-15 22:08:15,649 INFO L226 Difference]: Without dead ends: 128 [2020-10-15 22:08:15,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-15 22:08:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-15 22:08:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-15 22:08:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-10-15 22:08:15,659 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-10-15 22:08:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,660 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-10-15 22:08:15,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:08:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-10-15 22:08:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:08:15,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:08:15,663 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,663 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-10-15 22:08:15,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789141239] [2020-10-15 22:08:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789141239] [2020-10-15 22:08:15,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:08:15,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638528676] [2020-10-15 22:08:15,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:08:15,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:08:15,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,738 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 3 states. [2020-10-15 22:08:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,743 INFO L93 Difference]: Finished difference Result 122 states and 288 transitions. [2020-10-15 22:08:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:08:15,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 22:08:15,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,745 INFO L225 Difference]: With dead ends: 122 [2020-10-15 22:08:15,745 INFO L226 Difference]: Without dead ends: 122 [2020-10-15 22:08:15,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-15 22:08:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-15 22:08:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 22:08:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 288 transitions. [2020-10-15 22:08:15,751 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 288 transitions. Word has length 12 [2020-10-15 22:08:15,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,752 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 288 transitions. [2020-10-15 22:08:15,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:08:15,752 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 288 transitions. [2020-10-15 22:08:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:08:15,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:08:15,754 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,754 INFO L82 PathProgramCache]: Analyzing trace with hash -117499308, now seen corresponding path program 1 times [2020-10-15 22:08:15,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613099024] [2020-10-15 22:08:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613099024] [2020-10-15 22:08:15,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:08:15,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58965910] [2020-10-15 22:08:15,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:08:15,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:08:15,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:08:15,799 INFO L87 Difference]: Start difference. First operand 122 states and 288 transitions. Second operand 4 states. [2020-10-15 22:08:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,822 INFO L93 Difference]: Finished difference Result 184 states and 429 transitions. [2020-10-15 22:08:15,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:08:15,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 22:08:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,824 INFO L225 Difference]: With dead ends: 184 [2020-10-15 22:08:15,824 INFO L226 Difference]: Without dead ends: 130 [2020-10-15 22:08:15,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:08:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-15 22:08:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2020-10-15 22:08:15,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 22:08:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2020-10-15 22:08:15,831 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 13 [2020-10-15 22:08:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,831 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2020-10-15 22:08:15,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:08:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2020-10-15 22:08:15,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:08:15,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:08:15,833 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 2 times [2020-10-15 22:08:15,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189030992] [2020-10-15 22:08:15,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189030992] [2020-10-15 22:08:15,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:08:15,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375898058] [2020-10-15 22:08:15,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:08:15,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:08:15,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:08:15,884 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand 4 states. [2020-10-15 22:08:15,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,902 INFO L93 Difference]: Finished difference Result 142 states and 318 transitions. [2020-10-15 22:08:15,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:08:15,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 22:08:15,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,904 INFO L225 Difference]: With dead ends: 142 [2020-10-15 22:08:15,904 INFO L226 Difference]: Without dead ends: 82 [2020-10-15 22:08:15,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:08:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-15 22:08:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-15 22:08:15,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-15 22:08:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-10-15 22:08:15,908 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 13 [2020-10-15 22:08:15,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,908 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-10-15 22:08:15,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:08:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-10-15 22:08:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:08:15,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:08:15,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:08:15,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:08:15,910 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:08:15,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:08:15,911 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-10-15 22:08:15,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:08:15,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832411740] [2020-10-15 22:08:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:08:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:08:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:08:15,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832411740] [2020-10-15 22:08:15,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:08:15,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:08:15,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048970441] [2020-10-15 22:08:15,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:08:15,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:08:15,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:08:15,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,940 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 3 states. [2020-10-15 22:08:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:08:15,947 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-10-15 22:08:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:08:15,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 22:08:15,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:08:15,948 INFO L225 Difference]: With dead ends: 74 [2020-10-15 22:08:15,948 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:08:15,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:08:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:08:15,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:08:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:08:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:08:15,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-15 22:08:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:08:15,950 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:08:15,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:08:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:08:15,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:08:15,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:08:15,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:08:15 BasicIcfg [2020-10-15 22:08:15,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:08:15,957 INFO L168 Benchmark]: Toolchain (without parser) took 4101.62 ms. Allocated memory was 252.2 MB in the beginning and 379.1 MB in the end (delta: 126.9 MB). Free memory was 205.8 MB in the beginning and 264.6 MB in the end (delta: -58.8 MB). Peak memory consumption was 68.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:08:15,957 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:08:15,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.56 ms. Allocated memory was 252.2 MB in the beginning and 323.5 MB in the end (delta: 71.3 MB). Free memory was 205.8 MB in the beginning and 276.9 MB in the end (delta: -71.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:08:15,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.49 ms. Allocated memory is still 323.5 MB. Free memory was 276.9 MB in the beginning and 274.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:08:15,960 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 323.5 MB. Free memory was 274.4 MB in the beginning and 271.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:08:15,961 INFO L168 Benchmark]: RCFGBuilder took 426.58 ms. Allocated memory is still 323.5 MB. Free memory was 271.9 MB in the beginning and 250.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:08:15,962 INFO L168 Benchmark]: TraceAbstraction took 2776.75 ms. Allocated memory was 323.5 MB in the beginning and 379.1 MB in the end (delta: 55.6 MB). Free memory was 250.0 MB in the beginning and 264.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 14.2 GB. [2020-10-15 22:08:15,966 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 819.56 ms. Allocated memory was 252.2 MB in the beginning and 323.5 MB in the end (delta: 71.3 MB). Free memory was 205.8 MB in the beginning and 276.9 MB in the end (delta: -71.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.49 ms. Allocated memory is still 323.5 MB. Free memory was 276.9 MB in the beginning and 274.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 323.5 MB. Free memory was 274.4 MB in the beginning and 271.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 426.58 ms. Allocated memory is still 323.5 MB. Free memory was 271.9 MB in the beginning and 250.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2776.75 ms. Allocated memory was 323.5 MB in the beginning and 379.1 MB in the end (delta: 55.6 MB). Free memory was 250.0 MB in the beginning and 264.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 850 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 69 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 144 SDtfs, 81 SDslu, 119 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...