./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e3a13afdd4064627690571de84930a283adde5b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:04:02,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:04:02,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:04:02,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:04:02,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:04:02,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:04:02,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:04:02,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:04:02,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:04:02,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:04:02,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:04:02,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:04:02,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:04:02,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:04:02,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:04:02,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:04:02,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:04:02,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:04:02,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:04:02,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:04:02,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:04:02,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:04:02,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:04:02,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:04:02,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:04:02,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:04:02,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:04:02,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:04:02,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:04:02,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:04:02,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:04:02,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:04:02,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:04:02,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:04:02,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:04:02,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:04:02,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:04:02,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:04:02,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:04:02,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:04:02,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:04:02,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:04:02,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:04:02,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:04:02,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:04:02,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:04:02,883 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:04:02,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:04:02,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:04:02,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:04:02,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:04:02,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:04:02,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:04:02,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:04:02,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:04:02,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:04:02,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:04:02,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:04:02,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:04:02,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:04:02,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:04:02,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:04:02,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:04:02,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:04:02,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:04:02,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:04:02,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:04:02,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:04:02,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:04:02,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:04:02,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:04:02,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e3a13afdd4064627690571de84930a283adde5b [2020-10-20 03:04:03,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:04:03,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:04:03,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:04:03,126 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:04:03,127 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:04:03,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i [2020-10-20 03:04:03,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd022bc35/d68349d7c5be44e4aaaf350d343bf276/FLAG0fe71e144 [2020-10-20 03:04:03,763 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:04:03,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i [2020-10-20 03:04:03,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd022bc35/d68349d7c5be44e4aaaf350d343bf276/FLAG0fe71e144 [2020-10-20 03:04:04,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd022bc35/d68349d7c5be44e4aaaf350d343bf276 [2020-10-20 03:04:04,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:04:04,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:04:04,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:04:04,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:04:04,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:04:04,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3947e891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04, skipping insertion in model container [2020-10-20 03:04:04,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:04:04,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:04:04,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:04:04,602 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:04:04,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:04:04,768 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:04:04,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04 WrapperNode [2020-10-20 03:04:04,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:04:04,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:04:04,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:04:04,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:04:04,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:04:04,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:04:04,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:04:04,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:04:04,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (1/1) ... [2020-10-20 03:04:04,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:04:04,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:04:04,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:04:04,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:04:04,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (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 [2020-10-20 03:04:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:04:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:04:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:04:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:04:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:04:04,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:04:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:04:04,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:04:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:04:04,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:04:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:04:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:04:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:04:04,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:04:04,971 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:04:05,373 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:04:05,374 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:04:05,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:04:05 BoogieIcfgContainer [2020-10-20 03:04:05,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:04:05,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:04:05,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:04:05,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:04:05,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:04:04" (1/3) ... [2020-10-20 03:04:05,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48038eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:04:05, skipping insertion in model container [2020-10-20 03:04:05,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:04" (2/3) ... [2020-10-20 03:04:05,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48038eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:04:05, skipping insertion in model container [2020-10-20 03:04:05,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:04:05" (3/3) ... [2020-10-20 03:04:05,386 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2020-10-20 03:04:05,400 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:04:05,400 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:04:05,409 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:04:05,410 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:04:05,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,451 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,451 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,456 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,456 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,465 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,465 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:04:05,467 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:04:05,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:04:05,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:04:05,504 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:04:05,504 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:04:05,504 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:04:05,504 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:04:05,504 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:04:05,504 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:04:05,504 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:04:05,517 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:04:05,519 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-20 03:04:05,522 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-20 03:04:05,523 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-20 03:04:05,568 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-20 03:04:05,568 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:04:05,573 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-20 03:04:05,576 INFO L117 LiptonReduction]: Number of co-enabled transitions 1356 [2020-10-20 03:04:07,355 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-20 03:04:07,459 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-20 03:04:07,470 INFO L132 LiptonReduction]: Checked pairs total: 2462 [2020-10-20 03:04:07,471 INFO L134 LiptonReduction]: Total number of compositions: 70 [2020-10-20 03:04:07,479 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-20 03:04:07,508 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 282 states. [2020-10-20 03:04:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-10-20 03:04:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:04:07,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:07,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:07,522 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:07,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:07,529 INFO L82 PathProgramCache]: Analyzing trace with hash 982566713, now seen corresponding path program 1 times [2020-10-20 03:04:07,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:07,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786988727] [2020-10-20 03:04:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:07,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786988727] [2020-10-20 03:04:07,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:07,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:04:07,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791989759] [2020-10-20 03:04:07,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:04:07,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:07,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:04:07,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:04:07,773 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 2 states. [2020-10-20 03:04:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:07,803 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-20 03:04:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:04:07,805 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 03:04:07,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:07,821 INFO L225 Difference]: With dead ends: 282 [2020-10-20 03:04:07,821 INFO L226 Difference]: Without dead ends: 234 [2020-10-20 03:04:07,826 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 [2020-10-20 03:04:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-20 03:04:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-20 03:04:07,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-20 03:04:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 656 transitions. [2020-10-20 03:04:07,906 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 656 transitions. Word has length 8 [2020-10-20 03:04:07,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:07,908 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 656 transitions. [2020-10-20 03:04:07,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:04:07,910 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 656 transitions. [2020-10-20 03:04:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:04:07,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:07,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:07,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:04:07,912 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:07,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:07,913 INFO L82 PathProgramCache]: Analyzing trace with hash 394788315, now seen corresponding path program 1 times [2020-10-20 03:04:07,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:07,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549280970] [2020-10-20 03:04:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:08,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549280970] [2020-10-20 03:04:08,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:08,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:04:08,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749023045] [2020-10-20 03:04:08,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:04:08,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:08,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:04:08,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:04:08,045 INFO L87 Difference]: Start difference. First operand 234 states and 656 transitions. Second operand 3 states. [2020-10-20 03:04:08,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:08,078 INFO L93 Difference]: Finished difference Result 180 states and 440 transitions. [2020-10-20 03:04:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:04:08,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:04:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:08,080 INFO L225 Difference]: With dead ends: 180 [2020-10-20 03:04:08,080 INFO L226 Difference]: Without dead ends: 180 [2020-10-20 03:04:08,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:04:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-20 03:04:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-10-20 03:04:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-20 03:04:08,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-10-20 03:04:08,096 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 9 [2020-10-20 03:04:08,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:08,097 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-10-20 03:04:08,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:04:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-10-20 03:04:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:04:08,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:08,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:08,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:04:08,099 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1410976981, now seen corresponding path program 1 times [2020-10-20 03:04:08,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:08,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604162555] [2020-10-20 03:04:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:08,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604162555] [2020-10-20 03:04:08,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:08,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:04:08,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809927123] [2020-10-20 03:04:08,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:04:08,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:08,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:04:08,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:04:08,186 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 4 states. [2020-10-20 03:04:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:08,231 INFO L93 Difference]: Finished difference Result 117 states and 251 transitions. [2020-10-20 03:04:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:04:08,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 03:04:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:08,234 INFO L225 Difference]: With dead ends: 117 [2020-10-20 03:04:08,234 INFO L226 Difference]: Without dead ends: 117 [2020-10-20 03:04:08,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:04:08,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-20 03:04:08,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-20 03:04:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-20 03:04:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 251 transitions. [2020-10-20 03:04:08,249 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 251 transitions. Word has length 11 [2020-10-20 03:04:08,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:08,250 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 251 transitions. [2020-10-20 03:04:08,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:04:08,250 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 251 transitions. [2020-10-20 03:04:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 03:04:08,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:08,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:08,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:04:08,252 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:08,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:08,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1834300814, now seen corresponding path program 1 times [2020-10-20 03:04:08,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:08,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479552312] [2020-10-20 03:04:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:08,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479552312] [2020-10-20 03:04:08,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:08,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:04:08,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434494290] [2020-10-20 03:04:08,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:04:08,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:08,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:04:08,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:04:08,316 INFO L87 Difference]: Start difference. First operand 117 states and 251 transitions. Second operand 5 states. [2020-10-20 03:04:08,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:08,347 INFO L93 Difference]: Finished difference Result 93 states and 203 transitions. [2020-10-20 03:04:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:04:08,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-20 03:04:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:08,348 INFO L225 Difference]: With dead ends: 93 [2020-10-20 03:04:08,348 INFO L226 Difference]: Without dead ends: 93 [2020-10-20 03:04:08,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:04:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-20 03:04:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-20 03:04:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-20 03:04:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 203 transitions. [2020-10-20 03:04:08,354 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 203 transitions. Word has length 14 [2020-10-20 03:04:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:08,354 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 203 transitions. [2020-10-20 03:04:08,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:04:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 203 transitions. [2020-10-20 03:04:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:04:08,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:08,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:08,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:04:08,356 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:08,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1160615665, now seen corresponding path program 1 times [2020-10-20 03:04:08,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:08,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243964267] [2020-10-20 03:04:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:08,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243964267] [2020-10-20 03:04:08,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:08,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:04:08,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333738478] [2020-10-20 03:04:08,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:04:08,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:08,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:04:08,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:04:08,432 INFO L87 Difference]: Start difference. First operand 93 states and 203 transitions. Second operand 4 states. [2020-10-20 03:04:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:08,463 INFO L93 Difference]: Finished difference Result 111 states and 233 transitions. [2020-10-20 03:04:08,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:04:08,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:04:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:08,474 INFO L225 Difference]: With dead ends: 111 [2020-10-20 03:04:08,475 INFO L226 Difference]: Without dead ends: 77 [2020-10-20 03:04:08,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:04:08,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-20 03:04:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-20 03:04:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-20 03:04:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 159 transitions. [2020-10-20 03:04:08,484 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 159 transitions. Word has length 17 [2020-10-20 03:04:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:08,485 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 159 transitions. [2020-10-20 03:04:08,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:04:08,485 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 159 transitions. [2020-10-20 03:04:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:04:08,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:08,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:08,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:04:08,488 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:08,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:08,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1741772653, now seen corresponding path program 2 times [2020-10-20 03:04:08,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:08,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568382329] [2020-10-20 03:04:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:08,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568382329] [2020-10-20 03:04:08,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:08,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:04:08,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875415948] [2020-10-20 03:04:08,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:04:08,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:08,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:04:08,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:04:08,605 INFO L87 Difference]: Start difference. First operand 77 states and 159 transitions. Second operand 5 states. [2020-10-20 03:04:08,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:08,634 INFO L93 Difference]: Finished difference Result 109 states and 220 transitions. [2020-10-20 03:04:08,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:04:08,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 03:04:08,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:08,636 INFO L225 Difference]: With dead ends: 109 [2020-10-20 03:04:08,636 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 03:04:08,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:04:08,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 03:04:08,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 03:04:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 03:04:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 99 transitions. [2020-10-20 03:04:08,640 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 99 transitions. Word has length 17 [2020-10-20 03:04:08,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:08,640 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 99 transitions. [2020-10-20 03:04:08,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:04:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 99 transitions. [2020-10-20 03:04:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:04:08,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:04:08,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:04:08,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:04:08,641 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:04:08,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:04:08,642 INFO L82 PathProgramCache]: Analyzing trace with hash 477726785, now seen corresponding path program 3 times [2020-10-20 03:04:08,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:04:08,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068405521] [2020-10-20 03:04:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:04:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:04:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:04:08,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068405521] [2020-10-20 03:04:08,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:04:08,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:04:08,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82411739] [2020-10-20 03:04:08,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:04:08,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:04:08,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:04:08,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:04:08,702 INFO L87 Difference]: Start difference. First operand 53 states and 99 transitions. Second operand 5 states. [2020-10-20 03:04:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:04:08,723 INFO L93 Difference]: Finished difference Result 52 states and 98 transitions. [2020-10-20 03:04:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:04:08,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 03:04:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:04:08,723 INFO L225 Difference]: With dead ends: 52 [2020-10-20 03:04:08,723 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:04:08,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:04:08,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:04:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:04:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:04:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:04:08,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-20 03:04:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:04:08,725 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:04:08,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:04:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:04:08,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:04:08,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:04:08,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:04:08 BasicIcfg [2020-10-20 03:04:08,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:04:08,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:04:08,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:04:08,730 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:04:08,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:04:05" (3/4) ... [2020-10-20 03:04:08,734 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:04:08,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:04:08,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:04:08,742 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:04:08,746 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:04:08,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:04:08,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:04:08,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:04:08,796 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:04:08,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:04:08,798 INFO L168 Benchmark]: Toolchain (without parser) took 4744.53 ms. Allocated memory was 34.6 MB in the beginning and 68.2 MB in the end (delta: 33.6 MB). Free memory was 9.8 MB in the beginning and 11.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,798 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.67 ms. Allocated memory was 34.6 MB in the beginning and 45.1 MB in the end (delta: 10.5 MB). Free memory was 9.0 MB in the beginning and 26.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.85 ms. Allocated memory is still 45.1 MB. Free memory was 25.9 MB in the beginning and 23.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,800 INFO L168 Benchmark]: Boogie Preprocessor took 38.65 ms. Allocated memory is still 45.1 MB. Free memory was 23.7 MB in the beginning and 22.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,801 INFO L168 Benchmark]: RCFGBuilder took 481.02 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 22.3 MB in the beginning and 13.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,802 INFO L168 Benchmark]: TraceAbstraction took 3351.34 ms. Allocated memory was 46.7 MB in the beginning and 68.2 MB in the end (delta: 21.5 MB). Free memory was 13.3 MB in the beginning and 15.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 19.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,802 INFO L168 Benchmark]: Witness Printer took 66.40 ms. Allocated memory is still 68.2 MB. Free memory was 15.6 MB in the beginning and 11.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:04:08,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 709.67 ms. Allocated memory was 34.6 MB in the beginning and 45.1 MB in the end (delta: 10.5 MB). Free memory was 9.0 MB in the beginning and 26.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 85.85 ms. Allocated memory is still 45.1 MB. Free memory was 25.9 MB in the beginning and 23.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 38.65 ms. Allocated memory is still 45.1 MB. Free memory was 23.7 MB in the beginning and 22.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 481.02 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 22.3 MB in the beginning and 13.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3351.34 ms. Allocated memory was 46.7 MB in the beginning and 68.2 MB in the end (delta: 21.5 MB). Free memory was 13.3 MB in the beginning and 15.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 19.2 MB. Max. memory is 14.3 GB. * Witness Printer took 66.40 ms. Allocated memory is still 68.2 MB. Free memory was 15.6 MB in the beginning and 11.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 945 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 74 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 84 PlacesBefore, 31 PlacesAfterwards, 77 TransitionsBefore, 22 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2462 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 111 SDtfs, 79 SDslu, 136 SDs, 0 SdLazy, 58 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred 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, 0.3s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2892 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...