/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/safe025_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:38:37,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:38:37,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:38:37,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:38:37,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:38:37,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:38:37,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:38:37,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:38:37,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:38:37,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:38:37,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:38:37,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:38:37,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:38:37,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:38:37,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:38:37,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:38:37,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:38:37,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:38:37,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:38:37,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:38:37,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:38:37,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:38:37,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:38:37,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:38:37,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:38:37,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:38:37,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:38:37,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:38:37,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:38:37,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:38:37,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:38:37,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:38:37,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:38:37,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:38:37,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:38:37,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:38:37,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:38:37,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:38:37,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:38:37,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:38:37,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:38:37,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:38:37,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:38:37,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:38:37,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:38:37,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:38:37,622 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:38:37,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:38:37,622 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:38:37,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:38:37,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:38:37,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:38:37,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:38:37,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:38:37,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:38:37,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:38:37,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:38:37,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:38:37,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:38:37,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:38:37,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:38:37,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:38:37,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:38:37,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:38:37,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:38:37,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:38:37,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:38:37,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:38:37,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:38:37,627 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:38:37,628 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:38:37,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:38:37,628 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:38:37,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:38:37,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:38:37,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:38:37,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:38:37,909 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:38:37,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-10-22 00:38:37,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ee28338c/bb71d6456b684b5a98a225c58fbb1602/FLAG5017463b1 [2020-10-22 00:38:38,498 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:38:38,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-10-22 00:38:38,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ee28338c/bb71d6456b684b5a98a225c58fbb1602/FLAG5017463b1 [2020-10-22 00:38:38,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ee28338c/bb71d6456b684b5a98a225c58fbb1602 [2020-10-22 00:38:38,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:38:38,873 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:38:38,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:38:38,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:38:38,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:38:38,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:38:38" (1/1) ... [2020-10-22 00:38:38,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be36939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:38, skipping insertion in model container [2020-10-22 00:38:38,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:38:38" (1/1) ... [2020-10-22 00:38:38,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:38:38,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:38:39,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:38:39,397 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:38:39,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:38:39,528 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:38:39,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39 WrapperNode [2020-10-22 00:38:39,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:38:39,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:38:39,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:38:39,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:38:39,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:38:39,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:38:39,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:38:39,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:38:39,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... [2020-10-22 00:38:39,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:38:39,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:38:39,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:38:39,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:38:39,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:38:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:38:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:38:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:38:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:38:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:38:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:38:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:38:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:38:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:38:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:38:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:38:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:38:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:38:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:38:39,678 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:38:40,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:38:40,075 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:38:40,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:38:40 BoogieIcfgContainer [2020-10-22 00:38:40,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:38:40,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:38:40,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:38:40,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:38:40,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:38:38" (1/3) ... [2020-10-22 00:38:40,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a18270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:38:40, skipping insertion in model container [2020-10-22 00:38:40,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:38:39" (2/3) ... [2020-10-22 00:38:40,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a18270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:38:40, skipping insertion in model container [2020-10-22 00:38:40,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:38:40" (3/3) ... [2020-10-22 00:38:40,086 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2020-10-22 00:38:40,097 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:38:40,098 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:38:40,106 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:38:40,107 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:38:40,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,140 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,140 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,148 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,157 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:38:40,163 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:38:40,174 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:38:40,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:38:40,193 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:38:40,194 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:38:40,194 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:38:40,194 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:38:40,194 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:38:40,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:38:40,194 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:38:40,208 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:38:40,208 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:38:40,210 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:38:40,212 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 00:38:40,254 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 00:38:40,254 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:38:40,259 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:38:40,262 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:38:41,898 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-10-22 00:38:42,055 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-10-22 00:38:42,055 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-22 00:38:42,062 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 00:38:42,089 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 00:38:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 00:38:42,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:38:42,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:42,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:42,100 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:42,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:42,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-10-22 00:38:42,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:42,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535501654] [2020-10-22 00:38:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:42,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535501654] [2020-10-22 00:38:42,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:42,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:38:42,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2094918043] [2020-10-22 00:38:42,349 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:42,364 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:42,377 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:38:42,378 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:42,382 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:42,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:38:42,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:42,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:38:42,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:38:42,400 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-22 00:38:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:42,443 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-22 00:38:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:38:42,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 00:38:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:42,459 INFO L225 Difference]: With dead ends: 282 [2020-10-22 00:38:42,459 INFO L226 Difference]: Without dead ends: 218 [2020-10-22 00:38:42,461 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 [2020-10-22 00:38:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-22 00:38:42,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-22 00:38:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 00:38:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-22 00:38:42,551 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-22 00:38:42,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:42,552 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-22 00:38:42,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:38:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-22 00:38:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:38:42,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:42,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:42,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:38:42,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:42,555 INFO L82 PathProgramCache]: Analyzing trace with hash 305615834, now seen corresponding path program 1 times [2020-10-22 00:38:42,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:42,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607558243] [2020-10-22 00:38:42,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:42,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607558243] [2020-10-22 00:38:42,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:42,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:38:42,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [496757526] [2020-10-22 00:38:42,640 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:42,641 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:42,643 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-22 00:38:42,643 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:42,664 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:42,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:38:42,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:42,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:38:42,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:38:42,667 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-22 00:38:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:42,684 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-22 00:38:42,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:38:42,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 00:38:42,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:42,687 INFO L225 Difference]: With dead ends: 202 [2020-10-22 00:38:42,687 INFO L226 Difference]: Without dead ends: 202 [2020-10-22 00:38:42,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:38:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-22 00:38:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-22 00:38:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-22 00:38:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-22 00:38:42,703 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-22 00:38:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:42,703 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-22 00:38:42,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:38:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-22 00:38:42,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:38:42,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:42,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:42,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:38:42,705 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:42,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:42,706 INFO L82 PathProgramCache]: Analyzing trace with hash 839872088, now seen corresponding path program 1 times [2020-10-22 00:38:42,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:42,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563257881] [2020-10-22 00:38:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:42,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563257881] [2020-10-22 00:38:42,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:42,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:38:42,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1385395606] [2020-10-22 00:38:42,762 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:42,763 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:42,765 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-22 00:38:42,765 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:42,827 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:42,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:38:42,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:42,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:38:42,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:38:42,829 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-22 00:38:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:42,838 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-10-22 00:38:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:38:42,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 00:38:42,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:42,841 INFO L225 Difference]: With dead ends: 194 [2020-10-22 00:38:42,841 INFO L226 Difference]: Without dead ends: 194 [2020-10-22 00:38:42,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:38:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-22 00:38:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-22 00:38:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-22 00:38:42,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-10-22 00:38:42,855 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-10-22 00:38:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:42,856 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-10-22 00:38:42,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:38:42,856 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-10-22 00:38:42,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:38:42,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:42,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:42,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:38:42,858 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:42,859 INFO L82 PathProgramCache]: Analyzing trace with hash 266199867, now seen corresponding path program 1 times [2020-10-22 00:38:42,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:42,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210026144] [2020-10-22 00:38:42,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:42,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210026144] [2020-10-22 00:38:42,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:42,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:38:42,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [61885031] [2020-10-22 00:38:42,940 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:42,942 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:42,944 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-22 00:38:42,944 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:43,012 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:43,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:38:43,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:43,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:38:43,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:38:43,014 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-10-22 00:38:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:43,047 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-10-22 00:38:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:38:43,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 00:38:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:43,049 INFO L225 Difference]: With dead ends: 225 [2020-10-22 00:38:43,049 INFO L226 Difference]: Without dead ends: 161 [2020-10-22 00:38:43,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:38:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-22 00:38:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-10-22 00:38:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-22 00:38:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-10-22 00:38:43,059 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-10-22 00:38:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:43,060 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-10-22 00:38:43,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:38:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-10-22 00:38:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:38:43,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:43,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:43,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:38:43,062 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:43,062 INFO L82 PathProgramCache]: Analyzing trace with hash -297551950, now seen corresponding path program 1 times [2020-10-22 00:38:43,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:43,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36332406] [2020-10-22 00:38:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:43,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36332406] [2020-10-22 00:38:43,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:43,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:38:43,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1759978459] [2020-10-22 00:38:43,126 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:43,127 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:43,130 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 00:38:43,130 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:43,217 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:43,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:38:43,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:43,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:38:43,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:38:43,218 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 5 states. [2020-10-22 00:38:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:43,260 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-22 00:38:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:38:43,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:38:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:43,261 INFO L225 Difference]: With dead ends: 160 [2020-10-22 00:38:43,261 INFO L226 Difference]: Without dead ends: 123 [2020-10-22 00:38:43,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:38:43,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-22 00:38:43,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-22 00:38:43,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-22 00:38:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-22 00:38:43,268 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-10-22 00:38:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:43,268 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-22 00:38:43,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:38:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-22 00:38:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:38:43,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:43,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:43,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:38:43,270 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:43,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1813731877, now seen corresponding path program 1 times [2020-10-22 00:38:43,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:43,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912536586] [2020-10-22 00:38:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:43,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912536586] [2020-10-22 00:38:43,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:43,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:38:43,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [655406384] [2020-10-22 00:38:43,337 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:43,338 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:43,341 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-22 00:38:43,341 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:43,413 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:43,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 00:38:43,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:43,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 00:38:43,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:38:43,414 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 6 states. [2020-10-22 00:38:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:43,462 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-22 00:38:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:38:43,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-22 00:38:43,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:43,463 INFO L225 Difference]: With dead ends: 118 [2020-10-22 00:38:43,463 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 00:38:43,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:38:43,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 00:38:43,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 00:38:43,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 00:38:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-22 00:38:43,484 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-22 00:38:43,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:43,485 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-22 00:38:43,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 00:38:43,485 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-22 00:38:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 00:38:43,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:43,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:43,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:38:43,486 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:43,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:43,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1641541318, now seen corresponding path program 1 times [2020-10-22 00:38:43,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:43,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348815396] [2020-10-22 00:38:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:43,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348815396] [2020-10-22 00:38:43,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:43,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:38:43,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [447217024] [2020-10-22 00:38:43,531 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:43,533 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:43,542 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 100 transitions. [2020-10-22 00:38:43,542 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:43,810 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:43,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:38:43,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:43,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:38:43,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:38:43,811 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-22 00:38:43,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:43,842 INFO L93 Difference]: Finished difference Result 133 states and 287 transitions. [2020-10-22 00:38:43,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:38:43,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 00:38:43,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:43,844 INFO L225 Difference]: With dead ends: 133 [2020-10-22 00:38:43,844 INFO L226 Difference]: Without dead ends: 84 [2020-10-22 00:38:43,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:38:43,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-22 00:38:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-22 00:38:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-22 00:38:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 174 transitions. [2020-10-22 00:38:43,849 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 174 transitions. Word has length 17 [2020-10-22 00:38:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:43,850 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 174 transitions. [2020-10-22 00:38:43,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:38:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 174 transitions. [2020-10-22 00:38:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 00:38:43,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:43,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:43,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:38:43,851 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:43,852 INFO L82 PathProgramCache]: Analyzing trace with hash -810832998, now seen corresponding path program 2 times [2020-10-22 00:38:43,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:43,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350776294] [2020-10-22 00:38:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:43,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350776294] [2020-10-22 00:38:43,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:43,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:38:43,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1395449237] [2020-10-22 00:38:43,891 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:43,893 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:43,899 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 69 transitions. [2020-10-22 00:38:43,899 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:44,066 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:44,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:38:44,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:44,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:38:44,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:38:44,067 INFO L87 Difference]: Start difference. First operand 84 states and 174 transitions. Second operand 4 states. [2020-10-22 00:38:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:44,087 INFO L93 Difference]: Finished difference Result 121 states and 247 transitions. [2020-10-22 00:38:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:38:44,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 00:38:44,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:44,088 INFO L225 Difference]: With dead ends: 121 [2020-10-22 00:38:44,088 INFO L226 Difference]: Without dead ends: 72 [2020-10-22 00:38:44,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:38:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-22 00:38:44,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-22 00:38:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 00:38:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 140 transitions. [2020-10-22 00:38:44,092 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 140 transitions. Word has length 17 [2020-10-22 00:38:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:44,092 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 140 transitions. [2020-10-22 00:38:44,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:38:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 140 transitions. [2020-10-22 00:38:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 00:38:44,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:44,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:44,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 00:38:44,093 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash -534648938, now seen corresponding path program 3 times [2020-10-22 00:38:44,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:44,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110463567] [2020-10-22 00:38:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:44,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110463567] [2020-10-22 00:38:44,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:44,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:38:44,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [599938288] [2020-10-22 00:38:44,131 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:44,133 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:44,139 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-22 00:38:44,140 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:44,403 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:44,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:38:44,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:38:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:38:44,404 INFO L87 Difference]: Start difference. First operand 72 states and 140 transitions. Second operand 4 states. [2020-10-22 00:38:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:44,424 INFO L93 Difference]: Finished difference Result 91 states and 172 transitions. [2020-10-22 00:38:44,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:38:44,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 00:38:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:44,426 INFO L225 Difference]: With dead ends: 91 [2020-10-22 00:38:44,426 INFO L226 Difference]: Without dead ends: 30 [2020-10-22 00:38:44,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:38:44,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-22 00:38:44,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-22 00:38:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-22 00:38:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-22 00:38:44,428 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-22 00:38:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:44,429 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-22 00:38:44,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:38:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-22 00:38:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 00:38:44,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:38:44,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:38:44,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 00:38:44,430 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:38:44,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:38:44,430 INFO L82 PathProgramCache]: Analyzing trace with hash 172930902, now seen corresponding path program 4 times [2020-10-22 00:38:44,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:38:44,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153648635] [2020-10-22 00:38:44,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:38:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:38:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:38:44,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153648635] [2020-10-22 00:38:44,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:38:44,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:38:44,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [508018387] [2020-10-22 00:38:44,471 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:38:44,473 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:38:44,480 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-22 00:38:44,480 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:38:44,544 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:38:44,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:38:44,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:38:44,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:38:44,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:38:44,546 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-22 00:38:44,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:38:44,588 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-22 00:38:44,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:38:44,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 00:38:44,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:38:44,589 INFO L225 Difference]: With dead ends: 29 [2020-10-22 00:38:44,589 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:38:44,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:38:44,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:38:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:38:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:38:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:38:44,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 00:38:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:38:44,590 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:38:44,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:38:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:38:44,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:38:44,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 00:38:44,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:38:44 BasicIcfg [2020-10-22 00:38:44,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:38:44,597 INFO L168 Benchmark]: Toolchain (without parser) took 5728.67 ms. Allocated memory was 140.5 MB in the beginning and 284.2 MB in the end (delta: 143.7 MB). Free memory was 101.8 MB in the beginning and 252.1 MB in the end (delta: -150.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:38:44,597 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:38:44,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.10 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 157.8 MB in the end (delta: -56.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-22 00:38:44,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.32 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:38:44,600 INFO L168 Benchmark]: Boogie Preprocessor took 26.38 ms. Allocated memory is still 203.9 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:38:44,601 INFO L168 Benchmark]: RCFGBuilder took 472.34 ms. Allocated memory is still 203.9 MB. Free memory was 153.9 MB in the beginning and 130.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:38:44,601 INFO L168 Benchmark]: TraceAbstraction took 4516.27 ms. Allocated memory was 203.9 MB in the beginning and 284.2 MB in the end (delta: 80.2 MB). Free memory was 129.5 MB in the beginning and 252.1 MB in the end (delta: -122.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:38:44,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.10 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 157.8 MB in the end (delta: -56.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.32 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.38 ms. Allocated memory is still 203.9 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 472.34 ms. Allocated memory is still 203.9 MB. Free memory was 153.9 MB in the beginning and 130.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4516.27 ms. Allocated memory was 203.9 MB in the beginning and 284.2 MB in the end (delta: 80.2 MB). Free memory was 129.5 MB in the beginning and 252.1 MB in the end (delta: -122.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 787 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 209 SDtfs, 127 SDslu, 242 SDs, 0 SdLazy, 131 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s 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, 0.3s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4448 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...