/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/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:34:50,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:34:50,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:34:50,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:34:50,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:34:50,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:34:50,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:34:50,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:34:50,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:34:50,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:34:50,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:34:50,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:34:50,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:34:50,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:34:50,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:34:50,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:34:50,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:34:50,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:34:50,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:34:50,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:34:50,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:34:50,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:34:50,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:34:50,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:34:50,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:34:50,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:34:50,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:34:50,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:34:50,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:34:50,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:34:50,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:34:50,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:34:50,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:34:50,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:34:50,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:34:50,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:34:50,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:34:50,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:34:50,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:34:50,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:34:50,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:34:50,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:34:50,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:34:50,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:34:50,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:34:50,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:34:50,664 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:34:50,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:34:50,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:34:50,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:34:50,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:34:50,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:34:50,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:34:50,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:34:50,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:34:50,667 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:34:50,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:34:50,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:34:50,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:34:50,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:34:50,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:34:50,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:34:50,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:34:50,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:34:50,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:34:50,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:34:50,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:34:50,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:34:50,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:34:50,670 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:34:50,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:34:50,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:34:50,670 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:34:50,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:34:50,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:34:50,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:34:50,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:34:50,976 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:34:50,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-10-16 13:34:51,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13f15b2e5/cfbde5d4b7b2405a91bc7d815479b08a/FLAG34ddb5c07 [2020-10-16 13:34:51,583 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:34:51,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-10-16 13:34:51,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13f15b2e5/cfbde5d4b7b2405a91bc7d815479b08a/FLAG34ddb5c07 [2020-10-16 13:34:51,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13f15b2e5/cfbde5d4b7b2405a91bc7d815479b08a [2020-10-16 13:34:51,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:34:51,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:34:51,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:34:51,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:34:51,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:34:51,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:34:51" (1/1) ... [2020-10-16 13:34:51,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e8d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:51, skipping insertion in model container [2020-10-16 13:34:51,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:34:51" (1/1) ... [2020-10-16 13:34:51,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:34:51,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:34:52,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:34:52,479 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:34:52,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:34:52,609 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:34:52,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52 WrapperNode [2020-10-16 13:34:52,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:34:52,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:34:52,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:34:52,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:34:52,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:34:52,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:34:52,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:34:52,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:34:52,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... [2020-10-16 13:34:52,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:34:52,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:34:52,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:34:52,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:34:52,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:34:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:34:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:34:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:34:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:34:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:34:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:34:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:34:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:34:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:34:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:34:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:34:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:34:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:34:52,760 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:34:53,138 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:34:53,139 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:34:53,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:34:53 BoogieIcfgContainer [2020-10-16 13:34:53,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:34:53,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:34:53,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:34:53,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:34:53,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:34:51" (1/3) ... [2020-10-16 13:34:53,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e55154b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:34:53, skipping insertion in model container [2020-10-16 13:34:53,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:34:52" (2/3) ... [2020-10-16 13:34:53,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e55154b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:34:53, skipping insertion in model container [2020-10-16 13:34:53,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:34:53" (3/3) ... [2020-10-16 13:34:53,152 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2020-10-16 13:34:53,163 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:34:53,164 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:34:53,171 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:34:53,172 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:34:53,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,204 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,205 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,207 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,207 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,212 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,212 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,212 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,212 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,237 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,238 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,238 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,238 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:34:53,243 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:34:53,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:34:53,279 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:34:53,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:34:53,280 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:34:53,280 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:34:53,280 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:34:53,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:34:53,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:34:53,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:34:53,295 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:34:53,296 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 13:34:53,299 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 13:34:53,301 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 13:34:53,345 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 13:34:53,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:34:53,350 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. [2020-10-16 13:34:53,353 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:34:54,701 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-16 13:34:54,865 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-16 13:34:54,865 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-16 13:34:54,872 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 13:34:54,900 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 13:34:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 13:34:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:34:54,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:54,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:54,912 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:54,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-16 13:34:54,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:54,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370322906] [2020-10-16 13:34:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:55,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370322906] [2020-10-16 13:34:55,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:55,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:34:55,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [136059414] [2020-10-16 13:34:55,153 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:55,156 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:55,167 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:34:55,167 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:55,171 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:55,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:34:55,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:34:55,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:34:55,189 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 13:34:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:55,226 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-16 13:34:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:34:55,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:34:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:55,247 INFO L225 Difference]: With dead ends: 282 [2020-10-16 13:34:55,248 INFO L226 Difference]: Without dead ends: 218 [2020-10-16 13:34:55,249 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 [2020-10-16 13:34:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-16 13:34:55,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-16 13:34:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 13:34:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-16 13:34:55,325 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-16 13:34:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:55,327 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-16 13:34:55,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:34:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-16 13:34:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:34:55,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:55,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:55,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:34:55,329 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:55,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:55,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-10-16 13:34:55,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:55,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387404046] [2020-10-16 13:34:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:55,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387404046] [2020-10-16 13:34:55,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:55,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:34:55,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [895834317] [2020-10-16 13:34:55,447 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:55,448 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:55,456 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-16 13:34:55,456 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:55,472 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:55,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:34:55,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:55,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:34:55,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:34:55,475 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-16 13:34:55,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:55,520 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-16 13:34:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:34:55,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:34:55,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:55,523 INFO L225 Difference]: With dead ends: 242 [2020-10-16 13:34:55,523 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 13:34:55,524 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 [2020-10-16 13:34:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 13:34:55,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-16 13:34:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:34:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-16 13:34:55,538 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-16 13:34:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:55,538 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-16 13:34:55,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:34:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-16 13:34:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:34:55,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:55,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:55,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:34:55,541 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:55,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:55,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-10-16 13:34:55,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:55,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188178611] [2020-10-16 13:34:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:55,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188178611] [2020-10-16 13:34:55,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:55,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:34:55,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [4186846] [2020-10-16 13:34:55,592 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:55,593 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:55,596 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-16 13:34:55,596 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:55,617 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:55,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:34:55,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:34:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:34:55,618 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-16 13:34:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:55,630 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-10-16 13:34:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:34:55,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 13:34:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:55,632 INFO L225 Difference]: With dead ends: 138 [2020-10-16 13:34:55,633 INFO L226 Difference]: Without dead ends: 138 [2020-10-16 13:34:55,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:34:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-16 13:34:55,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-16 13:34:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 13:34:55,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-10-16 13:34:55,645 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-10-16 13:34:55,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:55,645 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-10-16 13:34:55,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:34:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-10-16 13:34:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:34:55,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:55,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:55,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:34:55,647 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:55,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:55,648 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times [2020-10-16 13:34:55,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:55,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497749076] [2020-10-16 13:34:55,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:55,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497749076] [2020-10-16 13:34:55,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:55,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:34:55,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [377531833] [2020-10-16 13:34:55,695 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:55,696 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:55,698 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-16 13:34:55,698 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:55,731 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:55,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:34:55,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:55,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:34:55,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:34:55,732 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 3 states. [2020-10-16 13:34:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:55,738 INFO L93 Difference]: Finished difference Result 134 states and 324 transitions. [2020-10-16 13:34:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:34:55,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 13:34:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:55,740 INFO L225 Difference]: With dead ends: 134 [2020-10-16 13:34:55,740 INFO L226 Difference]: Without dead ends: 134 [2020-10-16 13:34:55,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:34:55,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-16 13:34:55,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-16 13:34:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-16 13:34:55,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2020-10-16 13:34:55,749 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 12 [2020-10-16 13:34:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:55,750 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2020-10-16 13:34:55,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:34:55,750 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2020-10-16 13:34:55,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:34:55,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:55,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:55,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:34:55,752 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:55,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:55,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1648184308, now seen corresponding path program 1 times [2020-10-16 13:34:55,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:55,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243670334] [2020-10-16 13:34:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:55,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:55,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243670334] [2020-10-16 13:34:55,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:55,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:34:55,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1394072444] [2020-10-16 13:34:55,850 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:55,852 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:55,855 INFO L258 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-10-16 13:34:55,856 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:55,940 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:55,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:34:55,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:55,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:34:55,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:34:55,941 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand 4 states. [2020-10-16 13:34:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:55,967 INFO L93 Difference]: Finished difference Result 194 states and 466 transitions. [2020-10-16 13:34:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:34:55,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:34:55,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:55,969 INFO L225 Difference]: With dead ends: 194 [2020-10-16 13:34:55,969 INFO L226 Difference]: Without dead ends: 104 [2020-10-16 13:34:55,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:34:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-16 13:34:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-16 13:34:56,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-16 13:34:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-10-16 13:34:56,005 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 13 [2020-10-16 13:34:56,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:56,005 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-10-16 13:34:56,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:34:56,006 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-10-16 13:34:56,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:34:56,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:56,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:56,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:34:56,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:56,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1261556210, now seen corresponding path program 2 times [2020-10-16 13:34:56,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:56,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434768401] [2020-10-16 13:34:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:56,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434768401] [2020-10-16 13:34:56,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:56,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:34:56,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1503308189] [2020-10-16 13:34:56,124 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:56,125 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:56,130 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-10-16 13:34:56,130 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:56,188 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:56,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:34:56,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:56,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:34:56,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:34:56,189 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-10-16 13:34:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:56,212 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-10-16 13:34:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:34:56,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:34:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:56,213 INFO L225 Difference]: With dead ends: 128 [2020-10-16 13:34:56,213 INFO L226 Difference]: Without dead ends: 68 [2020-10-16 13:34:56,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:34:56,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-16 13:34:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-16 13:34:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-16 13:34:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-16 13:34:56,218 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 13 [2020-10-16 13:34:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:56,218 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-16 13:34:56,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:34:56,218 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-16 13:34:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:34:56,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:56,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:56,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:34:56,220 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:56,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 3 times [2020-10-16 13:34:56,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:56,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125106560] [2020-10-16 13:34:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:56,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125106560] [2020-10-16 13:34:56,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:56,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:34:56,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [207621791] [2020-10-16 13:34:56,283 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:56,284 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:56,287 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-10-16 13:34:56,287 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:56,326 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:34:56,358 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:56,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:34:56,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:56,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:34:56,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:34:56,359 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-16 13:34:56,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:56,397 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-10-16 13:34:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:34:56,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:34:56,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:56,400 INFO L225 Difference]: With dead ends: 81 [2020-10-16 13:34:56,400 INFO L226 Difference]: Without dead ends: 59 [2020-10-16 13:34:56,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:34:56,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-16 13:34:56,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-16 13:34:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-16 13:34:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-10-16 13:34:56,404 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-10-16 13:34:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:56,404 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-10-16 13:34:56,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:34:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-10-16 13:34:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:34:56,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:56,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:56,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:34:56,406 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:56,406 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-10-16 13:34:56,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:56,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867351347] [2020-10-16 13:34:56,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:56,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867351347] [2020-10-16 13:34:56,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:56,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:34:56,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2019870064] [2020-10-16 13:34:56,508 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:56,510 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:56,515 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-10-16 13:34:56,515 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:56,594 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3649#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:34:56,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 13:34:56,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:56,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 13:34:56,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:34:56,595 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 6 states. [2020-10-16 13:34:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:56,650 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-10-16 13:34:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:34:56,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 13:34:56,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:56,653 INFO L225 Difference]: With dead ends: 60 [2020-10-16 13:34:56,653 INFO L226 Difference]: Without dead ends: 45 [2020-10-16 13:34:56,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:34:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-16 13:34:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-16 13:34:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-16 13:34:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-10-16 13:34:56,656 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-10-16 13:34:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:56,657 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-10-16 13:34:56,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 13:34:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-10-16 13:34:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:34:56,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:56,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:56,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:34:56,658 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:56,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:56,658 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-10-16 13:34:56,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:56,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508419547] [2020-10-16 13:34:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:56,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508419547] [2020-10-16 13:34:56,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:56,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:34:56,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [449203445] [2020-10-16 13:34:56,713 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:56,715 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:56,718 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-10-16 13:34:56,718 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:56,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:34:56,779 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3808#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:34:56,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:34:56,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:56,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:34:56,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:34:56,780 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 7 states. [2020-10-16 13:34:56,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:56,825 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-10-16 13:34:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:34:56,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-16 13:34:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:56,826 INFO L225 Difference]: With dead ends: 42 [2020-10-16 13:34:56,827 INFO L226 Difference]: Without dead ends: 36 [2020-10-16 13:34:56,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:34:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-16 13:34:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-16 13:34:56,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-16 13:34:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-16 13:34:56,829 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-16 13:34:56,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:56,829 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-16 13:34:56,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:34:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-16 13:34:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:34:56,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:34:56,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:34:56,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:34:56,831 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:34:56,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:34:56,831 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-10-16 13:34:56,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:34:56,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721109905] [2020-10-16 13:34:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:34:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:34:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:34:56,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721109905] [2020-10-16 13:34:56,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:34:56,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:34:56,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1019844704] [2020-10-16 13:34:56,876 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:34:56,878 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:34:56,882 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-10-16 13:34:56,882 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:34:56,918 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:34:56,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:34:56,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:34:56,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:34:56,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:34:56,919 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-10-16 13:34:56,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:34:56,929 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-16 13:34:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:34:56,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:34:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:34:56,929 INFO L225 Difference]: With dead ends: 35 [2020-10-16 13:34:56,929 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:34:56,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:34:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:34:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:34:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:34:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:34:56,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 13:34:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:34:56,931 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:34:56,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:34:56,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:34:56,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:34:56,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:34:56,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:34:56 BasicIcfg [2020-10-16 13:34:56,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:34:56,938 INFO L168 Benchmark]: Toolchain (without parser) took 5019.62 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.3 MB in the beginning and 100.3 MB in the end (delta: 995.3 kB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,939 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.43 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 161.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.01 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,942 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 ms. Allocated memory is still 203.9 MB. Free memory was 159.3 MB in the beginning and 157.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,943 INFO L168 Benchmark]: RCFGBuilder took 450.04 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 135.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,943 INFO L168 Benchmark]: TraceAbstraction took 3792.92 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 135.2 MB in the beginning and 100.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:34:56,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.43 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 161.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.01 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.17 ms. Allocated memory is still 203.9 MB. Free memory was 159.3 MB in the beginning and 157.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 450.04 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 135.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3792.92 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 135.2 MB in the beginning and 100.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 662 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 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: 3.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 180 SDtfs, 107 SDslu, 191 SDs, 0 SdLazy, 122 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 86 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 3881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...