/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/safe037_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 01:12:29,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 01:12:29,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 01:12:29,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 01:12:29,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 01:12:29,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 01:12:29,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 01:12:29,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 01:12:29,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 01:12:29,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 01:12:29,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 01:12:29,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 01:12:29,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 01:12:29,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 01:12:29,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 01:12:29,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 01:12:29,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 01:12:29,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 01:12:29,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 01:12:29,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 01:12:29,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 01:12:29,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 01:12:29,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 01:12:29,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 01:12:30,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 01:12:30,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 01:12:30,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 01:12:30,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 01:12:30,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 01:12:30,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 01:12:30,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 01:12:30,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 01:12:30,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 01:12:30,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 01:12:30,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 01:12:30,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 01:12:30,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 01:12:30,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 01:12:30,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 01:12:30,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 01:12:30,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 01:12:30,073 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 01:12:30,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 01:12:30,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 01:12:30,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 01:12:30,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 01:12:30,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 01:12:30,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 01:12:30,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 01:12:30,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 01:12:30,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 01:12:30,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 01:12:30,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 01:12:30,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 01:12:30,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 01:12:30,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 01:12:30,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 01:12:30,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 01:12:30,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:12:30,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 01:12:30,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 01:12:30,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 01:12:30,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 01:12:30,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 01:12:30,079 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 01:12:30,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 01:12:30,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 01:12:30,080 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 01:12:30,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 01:12:30,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 01:12:30,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 01:12:30,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 01:12:30,538 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 01:12:30,540 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2020-09-16 01:12:30,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c298695d0/b9bd76f1dcf74ad4bc65f5d366355f30/FLAGee91c1e08 [2020-09-16 01:12:31,294 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 01:12:31,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2020-09-16 01:12:31,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c298695d0/b9bd76f1dcf74ad4bc65f5d366355f30/FLAGee91c1e08 [2020-09-16 01:12:31,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c298695d0/b9bd76f1dcf74ad4bc65f5d366355f30 [2020-09-16 01:12:31,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 01:12:31,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 01:12:31,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 01:12:31,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 01:12:31,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 01:12:31,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:12:31" (1/1) ... [2020-09-16 01:12:31,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148d86a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:31, skipping insertion in model container [2020-09-16 01:12:31,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:12:31" (1/1) ... [2020-09-16 01:12:31,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 01:12:31,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 01:12:32,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:12:32,125 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 01:12:32,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:12:32,286 INFO L208 MainTranslator]: Completed translation [2020-09-16 01:12:32,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32 WrapperNode [2020-09-16 01:12:32,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 01:12:32,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 01:12:32,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 01:12:32,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 01:12:32,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 01:12:32,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 01:12:32,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 01:12:32,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 01:12:32,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... [2020-09-16 01:12:32,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 01:12:32,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 01:12:32,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 01:12:32,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 01:12:32,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:12:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 01:12:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 01:12:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 01:12:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 01:12:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 01:12:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 01:12:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 01:12:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 01:12:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 01:12:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 01:12:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 01:12:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 01:12:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 01:12:32,469 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 01:12:32,810 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 01:12:32,810 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 01:12:32,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:12:32 BoogieIcfgContainer [2020-09-16 01:12:32,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 01:12:32,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 01:12:32,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 01:12:32,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 01:12:32,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:12:31" (1/3) ... [2020-09-16 01:12:32,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51dc0e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:12:32, skipping insertion in model container [2020-09-16 01:12:32,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:12:32" (2/3) ... [2020-09-16 01:12:32,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51dc0e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:12:32, skipping insertion in model container [2020-09-16 01:12:32,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:12:32" (3/3) ... [2020-09-16 01:12:32,827 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2020-09-16 01:12:32,840 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 01:12:32,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 01:12:32,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 01:12:32,852 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 01:12:32,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,892 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,892 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,904 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,904 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,911 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,915 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,915 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:12:32,941 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 01:12:32,969 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 01:12:32,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 01:12:32,970 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 01:12:32,970 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 01:12:32,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 01:12:32,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 01:12:32,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 01:12:32,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 01:12:32,991 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-16 01:12:32,993 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 01:12:33,048 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 01:12:33,048 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:12:33,055 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 01:12:33,058 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 01:12:33,097 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 01:12:33,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:12:33,098 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 01:12:33,100 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-16 01:12:33,102 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 01:12:34,249 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-16 01:12:34,348 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-09-16 01:12:34,349 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-16 01:12:34,354 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-16 01:12:34,386 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-16 01:12:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-16 01:12:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 01:12:34,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:34,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:34,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:34,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:34,409 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-09-16 01:12:34,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:34,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311172597] [2020-09-16 01:12:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:34,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311172597] [2020-09-16 01:12:34,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:34,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:12:34,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [191400353] [2020-09-16 01:12:34,678 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:34,684 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:34,708 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-16 01:12:34,708 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:34,725 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:12:34,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 01:12:34,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:34,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 01:12:34,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 01:12:34,756 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-16 01:12:34,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:34,797 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-16 01:12:34,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 01:12:34,800 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-16 01:12:34,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:34,830 INFO L225 Difference]: With dead ends: 362 [2020-09-16 01:12:34,830 INFO L226 Difference]: Without dead ends: 298 [2020-09-16 01:12:34,832 INFO L675 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 [2020-09-16 01:12:34,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-16 01:12:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-16 01:12:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-16 01:12:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-16 01:12:34,913 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-16 01:12:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:34,915 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-16 01:12:34,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 01:12:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-16 01:12:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 01:12:34,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:34,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:34,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 01:12:34,917 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:34,918 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-09-16 01:12:34,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:34,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820055145] [2020-09-16 01:12:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:35,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820055145] [2020-09-16 01:12:35,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:35,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:12:35,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2028916363] [2020-09-16 01:12:35,030 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:35,030 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:35,032 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-16 01:12:35,032 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:35,032 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:12:35,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 01:12:35,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:35,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 01:12:35,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:12:35,035 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-16 01:12:35,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:35,055 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-16 01:12:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 01:12:35,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-16 01:12:35,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:35,058 INFO L225 Difference]: With dead ends: 217 [2020-09-16 01:12:35,058 INFO L226 Difference]: Without dead ends: 217 [2020-09-16 01:12:35,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:12:35,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-16 01:12:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-16 01:12:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-16 01:12:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-16 01:12:35,077 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-16 01:12:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:35,077 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-16 01:12:35,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 01:12:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-16 01:12:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 01:12:35,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:35,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:35,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 01:12:35,080 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:35,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:35,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-09-16 01:12:35,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:35,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711163264] [2020-09-16 01:12:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:35,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711163264] [2020-09-16 01:12:35,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:35,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:12:35,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1492320869] [2020-09-16 01:12:35,222 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:35,224 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:35,227 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-09-16 01:12:35,228 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:35,323 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2424#(<= ~__unbuffered_cnt~0 0)] [2020-09-16 01:12:35,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:12:35,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:35,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:12:35,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:12:35,325 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-09-16 01:12:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:35,354 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-16 01:12:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 01:12:35,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-16 01:12:35,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:35,356 INFO L225 Difference]: With dead ends: 136 [2020-09-16 01:12:35,356 INFO L226 Difference]: Without dead ends: 136 [2020-09-16 01:12:35,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:12:35,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-16 01:12:35,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-16 01:12:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-16 01:12:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-16 01:12:35,366 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-16 01:12:35,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:35,366 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-16 01:12:35,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:12:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-16 01:12:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-16 01:12:35,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:35,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:35,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 01:12:35,369 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:35,370 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-09-16 01:12:35,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:35,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001310427] [2020-09-16 01:12:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:35,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001310427] [2020-09-16 01:12:35,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:35,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 01:12:35,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [42256312] [2020-09-16 01:12:35,458 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:35,460 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:35,463 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 49 transitions. [2020-09-16 01:12:35,463 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:35,539 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2838#(<= ~__unbuffered_cnt~0 0)] [2020-09-16 01:12:35,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-16 01:12:35,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-16 01:12:35,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-09-16 01:12:35,541 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-09-16 01:12:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:35,575 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-16 01:12:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:12:35,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-16 01:12:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:35,576 INFO L225 Difference]: With dead ends: 109 [2020-09-16 01:12:35,576 INFO L226 Difference]: Without dead ends: 109 [2020-09-16 01:12:35,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-09-16 01:12:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-16 01:12:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-16 01:12:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-16 01:12:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-16 01:12:35,583 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-16 01:12:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:35,583 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-16 01:12:35,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-16 01:12:35,583 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-16 01:12:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 01:12:35,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:35,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:35,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 01:12:35,586 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:35,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:35,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-09-16 01:12:35,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:35,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474824509] [2020-09-16 01:12:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:35,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:35,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474824509] [2020-09-16 01:12:35,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:35,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 01:12:35,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1296069160] [2020-09-16 01:12:35,728 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:35,730 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:35,738 INFO L274 McrAutomatonBuilder]: Finished intersection with 50 states and 85 transitions. [2020-09-16 01:12:35,739 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:35,848 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:12:35,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:12:35,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:35,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:12:35,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:12:35,849 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-09-16 01:12:35,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:35,900 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-16 01:12:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:12:35,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-16 01:12:35,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:35,902 INFO L225 Difference]: With dead ends: 135 [2020-09-16 01:12:35,902 INFO L226 Difference]: Without dead ends: 55 [2020-09-16 01:12:35,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 01:12:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-16 01:12:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-16 01:12:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-16 01:12:35,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-09-16 01:12:35,906 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-09-16 01:12:35,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:35,906 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-09-16 01:12:35,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:12:35,907 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-09-16 01:12:35,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 01:12:35,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:35,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:35,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 01:12:35,908 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:35,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:35,908 INFO L82 PathProgramCache]: Analyzing trace with hash -442498565, now seen corresponding path program 2 times [2020-09-16 01:12:35,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:35,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586738640] [2020-09-16 01:12:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:36,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586738640] [2020-09-16 01:12:36,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:36,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 01:12:36,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [998820069] [2020-09-16 01:12:36,010 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:36,012 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:36,015 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 26 transitions. [2020-09-16 01:12:36,016 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:36,037 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:12:36,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:12:36,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:36,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:12:36,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:12:36,039 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-09-16 01:12:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:36,082 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-09-16 01:12:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:12:36,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-16 01:12:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:36,083 INFO L225 Difference]: With dead ends: 75 [2020-09-16 01:12:36,084 INFO L226 Difference]: Without dead ends: 37 [2020-09-16 01:12:36,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 01:12:36,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-16 01:12:36,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-16 01:12:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-16 01:12:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-16 01:12:36,087 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-16 01:12:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:36,087 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-16 01:12:36,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:12:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-16 01:12:36,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 01:12:36,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:12:36,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:12:36,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 01:12:36,089 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:12:36,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:12:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-09-16 01:12:36,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:12:36,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095439669] [2020-09-16 01:12:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:12:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:12:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:12:36,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095439669] [2020-09-16 01:12:36,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:12:36,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 01:12:36,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [732694018] [2020-09-16 01:12:36,206 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:12:36,208 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:12:36,213 INFO L274 McrAutomatonBuilder]: Finished intersection with 29 states and 38 transitions. [2020-09-16 01:12:36,213 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:12:36,260 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:12:36,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:12:36,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:12:36,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:12:36,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:12:36,263 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-09-16 01:12:36,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:12:36,297 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-16 01:12:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:12:36,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-16 01:12:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:12:36,298 INFO L225 Difference]: With dead ends: 36 [2020-09-16 01:12:36,298 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 01:12:36,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 01:12:36,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 01:12:36,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 01:12:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 01:12:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 01:12:36,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-16 01:12:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:12:36,302 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 01:12:36,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:12:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 01:12:36,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 01:12:36,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 01:12:36,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:12:36 BasicIcfg [2020-09-16 01:12:36,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 01:12:36,318 INFO L168 Benchmark]: Toolchain (without parser) took 4809.74 ms. Allocated memory was 141.0 MB in the beginning and 244.8 MB in the end (delta: 103.8 MB). Free memory was 102.9 MB in the beginning and 166.2 MB in the end (delta: -63.3 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-09-16 01:12:36,323 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 01:12:36,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.28 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 162.2 MB in the end (delta: -60.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-16 01:12:36,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.53 ms. Allocated memory is still 205.0 MB. Free memory was 162.2 MB in the beginning and 160.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-16 01:12:36,328 INFO L168 Benchmark]: Boogie Preprocessor took 34.34 ms. Allocated memory is still 205.0 MB. Free memory was 160.3 MB in the beginning and 158.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-16 01:12:36,328 INFO L168 Benchmark]: RCFGBuilder took 434.62 ms. Allocated memory is still 205.0 MB. Free memory was 158.9 MB in the beginning and 136.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-16 01:12:36,334 INFO L168 Benchmark]: TraceAbstraction took 3495.99 ms. Allocated memory was 205.0 MB in the beginning and 244.8 MB in the end (delta: 39.8 MB). Free memory was 135.7 MB in the beginning and 166.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-16 01:12:36,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.28 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 162.2 MB in the end (delta: -60.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.53 ms. Allocated memory is still 205.0 MB. Free memory was 162.2 MB in the beginning and 160.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.34 ms. Allocated memory is still 205.0 MB. Free memory was 160.3 MB in the beginning and 158.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 434.62 ms. Allocated memory is still 205.0 MB. Free memory was 158.9 MB in the beginning and 136.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3495.99 ms. Allocated memory was 205.0 MB in the beginning and 244.8 MB in the end (delta: 39.8 MB). Free memory was 135.7 MB in the beginning and 166.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 640 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 138 SDtfs, 82 SDslu, 227 SDs, 0 SdLazy, 64 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3491 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...