/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:22:32,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:22:32,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:22:32,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:22:32,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:22:32,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:22:32,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:22:32,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:22:32,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:22:32,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:22:32,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:22:32,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:22:32,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:22:32,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:22:32,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:22:32,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:22:32,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:22:32,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:22:32,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:22:32,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:22:32,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:22:32,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:22:32,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:22:32,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:22:32,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:22:32,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:22:32,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:22:32,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:22:32,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:22:32,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:22:32,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:22:32,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:22:32,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:22:32,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:22:32,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:22:32,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:22:32,662 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-SP.epf [2020-10-22 02:22:32,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:22:32,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:22:32,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:22:32,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:22:32,708 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:22:32,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:22:32,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:22:32,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:22:32,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:22:32,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:22:32,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:22:32,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:22:32,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:22:32,712 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:22:32,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:22:32,712 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:22:32,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:22:32,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:22:32,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:22:32,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:22:32,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:22:32,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:22:32,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:22:32,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:22:32,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:22:32,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:22:32,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:22:32,715 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:22:32,715 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:22:32,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:22:32,715 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:22:32,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:22:33,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:22:33,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:22:33,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:22:33,011 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:22:33,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-10-22 02:22:33,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be620376e/1c991f3f7c884e1d9d4538b8bc6816d1/FLAG5e2a32925 [2020-10-22 02:22:33,670 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:22:33,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-10-22 02:22:33,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be620376e/1c991f3f7c884e1d9d4538b8bc6816d1/FLAG5e2a32925 [2020-10-22 02:22:33,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be620376e/1c991f3f7c884e1d9d4538b8bc6816d1 [2020-10-22 02:22:33,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:22:33,934 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:22:33,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:22:33,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:22:33,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:22:33,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:22:33" (1/1) ... [2020-10-22 02:22:33,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fef3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:33, skipping insertion in model container [2020-10-22 02:22:33,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:22:33" (1/1) ... [2020-10-22 02:22:33,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:22:34,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:22:34,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:22:34,440 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:22:34,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:22:34,596 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:22:34,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34 WrapperNode [2020-10-22 02:22:34,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:22:34,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:22:34,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:22:34,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:22:34,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:22:34,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:22:34,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:22:34,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:22:34,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (1/1) ... [2020-10-22 02:22:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:22:34,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:22:34,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:22:34,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:22:34,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (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 02:22:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:22:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:22:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:22:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:22:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:22:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:22:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:22:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:22:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:22:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:22:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:22:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:22:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:22:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:22:34,768 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 02:22:35,190 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:22:35,191 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:22:35,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:35 BoogieIcfgContainer [2020-10-22 02:22:35,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:22:35,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:22:35,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:22:35,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:22:35,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:22:33" (1/3) ... [2020-10-22 02:22:35,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544cd27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:35, skipping insertion in model container [2020-10-22 02:22:35,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:34" (2/3) ... [2020-10-22 02:22:35,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544cd27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:35, skipping insertion in model container [2020-10-22 02:22:35,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:35" (3/3) ... [2020-10-22 02:22:35,202 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2020-10-22 02:22:35,215 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:22:35,215 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:22:35,223 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:22:35,224 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:22:35,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,261 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,265 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,265 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,277 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,281 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,281 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:35,284 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:22:35,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:22:35,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:22:35,320 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:22:35,321 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:22:35,321 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:22:35,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:22:35,321 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:22:35,321 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:22:35,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:22:35,336 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:22:35,337 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:22:35,339 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:22:35,340 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 02:22:35,386 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 02:22:35,386 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:22:35,392 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 02:22:35,396 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:22:36,998 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-22 02:22:37,267 INFO L131 LiptonReduction]: Checked pairs total: 2778 [2020-10-22 02:22:37,267 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-10-22 02:22:37,274 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 02:22:37,303 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 02:22:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 02:22:37,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:22:37,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:37,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:37,315 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:37,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:37,321 INFO L82 PathProgramCache]: Analyzing trace with hash -345538935, now seen corresponding path program 1 times [2020-10-22 02:22:37,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:37,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013725325] [2020-10-22 02:22:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:37,547 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 02:22:37,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013725325] [2020-10-22 02:22:37,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:37,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:22:37,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [836775531] [2020-10-22 02:22:37,553 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:37,557 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:37,574 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:22:37,575 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:37,579 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:37,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:22:37,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:37,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:22:37,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:22:37,599 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 02:22:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:37,641 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 02:22:37,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:22:37,643 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 02:22:37,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:37,672 INFO L225 Difference]: With dead ends: 362 [2020-10-22 02:22:37,672 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 02:22:37,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:22:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 02:22:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 02:22:37,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 02:22:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 02:22:37,780 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 02:22:37,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:37,781 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 02:22:37,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:22:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 02:22:37,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:22:37,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:37,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:37,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:22:37,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:37,784 INFO L82 PathProgramCache]: Analyzing trace with hash -2121797576, now seen corresponding path program 1 times [2020-10-22 02:22:37,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:37,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325617449] [2020-10-22 02:22:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:37,912 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 02:22:37,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325617449] [2020-10-22 02:22:37,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:37,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:22:37,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1969319242] [2020-10-22 02:22:37,913 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:37,914 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:37,915 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 02:22:37,916 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:37,916 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:37,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:22:37,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:37,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:22:37,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:22:37,919 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 02:22:37,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:37,988 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-10-22 02:22:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:37,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 02:22:37,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:37,991 INFO L225 Difference]: With dead ends: 298 [2020-10-22 02:22:37,991 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 02:22:37,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:37,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 02:22:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 02:22:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 02:22:38,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-10-22 02:22:38,022 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-10-22 02:22:38,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:38,022 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-10-22 02:22:38,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:22:38,022 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-10-22 02:22:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:22:38,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:38,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:38,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:22:38,024 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:38,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:38,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1060758680, now seen corresponding path program 1 times [2020-10-22 02:22:38,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:38,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909684061] [2020-10-22 02:22:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:38,171 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 02:22:38,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909684061] [2020-10-22 02:22:38,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:38,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:22:38,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1768248202] [2020-10-22 02:22:38,173 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:38,174 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:38,175 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2020-10-22 02:22:38,176 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:38,206 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:38,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:22:38,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:38,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:22:38,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:22:38,207 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 4 states. [2020-10-22 02:22:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:38,242 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-10-22 02:22:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:38,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:22:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:38,244 INFO L225 Difference]: With dead ends: 346 [2020-10-22 02:22:38,244 INFO L226 Difference]: Without dead ends: 164 [2020-10-22 02:22:38,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:38,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-22 02:22:38,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-22 02:22:38,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-22 02:22:38,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-10-22 02:22:38,252 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-10-22 02:22:38,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:38,252 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-10-22 02:22:38,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:22:38,253 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-10-22 02:22:38,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:22:38,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:38,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:38,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:22:38,255 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:38,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:38,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1476250237, now seen corresponding path program 1 times [2020-10-22 02:22:38,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:38,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329030707] [2020-10-22 02:22:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:38,335 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 02:22:38,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329030707] [2020-10-22 02:22:38,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:38,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:22:38,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1945612080] [2020-10-22 02:22:38,338 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:38,339 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:38,344 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-22 02:22:38,345 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:38,396 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:22:38,468 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:22:38,480 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3229#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 02:22:38,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:22:38,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:38,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:22:38,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:38,481 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand 5 states. [2020-10-22 02:22:38,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:38,558 INFO L93 Difference]: Finished difference Result 139 states and 326 transitions. [2020-10-22 02:22:38,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:22:38,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 02:22:38,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:38,563 INFO L225 Difference]: With dead ends: 139 [2020-10-22 02:22:38,563 INFO L226 Difference]: Without dead ends: 87 [2020-10-22 02:22:38,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-22 02:22:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-22 02:22:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-22 02:22:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-10-22 02:22:38,570 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 12 [2020-10-22 02:22:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:38,570 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-10-22 02:22:38,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:22:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-10-22 02:22:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 02:22:38,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:38,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:38,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:22:38,572 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash 809328863, now seen corresponding path program 1 times [2020-10-22 02:22:38,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:38,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545446092] [2020-10-22 02:22:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:38,706 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 02:22:38,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545446092] [2020-10-22 02:22:38,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:38,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:22:38,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1892431199] [2020-10-22 02:22:38,708 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:38,713 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:38,718 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 37 transitions. [2020-10-22 02:22:38,718 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:38,754 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3553#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:22:38,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:22:38,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:38,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:22:38,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:38,755 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand 7 states. [2020-10-22 02:22:38,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:38,819 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-10-22 02:22:38,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:22:38,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 02:22:38,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:38,822 INFO L225 Difference]: With dead ends: 76 [2020-10-22 02:22:38,822 INFO L226 Difference]: Without dead ends: 67 [2020-10-22 02:22:38,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:22:38,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-22 02:22:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-22 02:22:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-22 02:22:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-10-22 02:22:38,825 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-10-22 02:22:38,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:38,826 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-10-22 02:22:38,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:22:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-10-22 02:22:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:22:38,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:38,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:38,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:22:38,827 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:38,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1097223765, now seen corresponding path program 1 times [2020-10-22 02:22:38,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:38,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786941158] [2020-10-22 02:22:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:38,886 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 02:22:38,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786941158] [2020-10-22 02:22:38,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:38,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:22:38,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1573624982] [2020-10-22 02:22:38,888 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:38,890 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:38,897 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 68 transitions. [2020-10-22 02:22:38,897 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:39,024 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:39,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:22:39,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:39,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:22:39,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:39,026 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand 5 states. [2020-10-22 02:22:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:39,054 INFO L93 Difference]: Finished difference Result 87 states and 167 transitions. [2020-10-22 02:22:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:39,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 02:22:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:39,056 INFO L225 Difference]: With dead ends: 87 [2020-10-22 02:22:39,056 INFO L226 Difference]: Without dead ends: 40 [2020-10-22 02:22:39,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-22 02:22:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-22 02:22:39,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-22 02:22:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-22 02:22:39,058 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-10-22 02:22:39,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:39,059 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-22 02:22:39,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:22:39,059 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-22 02:22:39,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:22:39,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:39,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:39,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:22:39,060 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:39,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:39,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1731427213, now seen corresponding path program 2 times [2020-10-22 02:22:39,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:39,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209016499] [2020-10-22 02:22:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:39,140 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 02:22:39,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209016499] [2020-10-22 02:22:39,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:39,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:22:39,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [701844099] [2020-10-22 02:22:39,142 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:39,144 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:39,151 INFO L252 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-10-22 02:22:39,151 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:39,222 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:39,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:22:39,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:39,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:22:39,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:39,224 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-22 02:22:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:39,261 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-10-22 02:22:39,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:39,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 02:22:39,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:39,262 INFO L225 Difference]: With dead ends: 39 [2020-10-22 02:22:39,262 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:22:39,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:39,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:22:39,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:22:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:22:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:22:39,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 02:22:39,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:39,264 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:22:39,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:22:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:22:39,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:22:39,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:22:39,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:22:39 BasicIcfg [2020-10-22 02:22:39,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:22:39,282 INFO L168 Benchmark]: Toolchain (without parser) took 5346.45 ms. Allocated memory was 140.5 MB in the beginning and 278.9 MB in the end (delta: 138.4 MB). Free memory was 102.7 MB in the beginning and 225.6 MB in the end (delta: -122.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:39,283 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 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:22:39,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.89 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 159.6 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:39,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.56 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:39,290 INFO L168 Benchmark]: Boogie Preprocessor took 26.44 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:39,290 INFO L168 Benchmark]: RCFGBuilder took 519.00 ms. Allocated memory is still 203.9 MB. Free memory was 155.7 MB in the beginning and 132.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:39,291 INFO L168 Benchmark]: TraceAbstraction took 4079.34 ms. Allocated memory was 203.9 MB in the beginning and 278.9 MB in the end (delta: 75.0 MB). Free memory was 131.0 MB in the beginning and 225.6 MB in the end (delta: -94.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:22:39,299 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 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 662.89 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 159.6 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.56 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.44 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 519.00 ms. Allocated memory is still 203.9 MB. Free memory was 155.7 MB in the beginning and 132.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4079.34 ms. Allocated memory was 203.9 MB in the beginning and 278.9 MB in the end (delta: 75.0 MB). Free memory was 131.0 MB in the beginning and 225.6 MB in the end (delta: -94.6 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 777 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2778 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 158 SDtfs, 124 SDslu, 249 SDs, 0 SdLazy, 103 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...