./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe015_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/safe015_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 f51cec7aed139d59f5c2c44b39d61d5b9a077bfe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:04:57,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:04:57,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:04:58,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:04:58,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:04:58,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:04:58,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:04:58,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:04:58,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:04:58,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:04:58,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:04:58,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:04:58,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:04:58,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:04:58,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:04:58,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:04:58,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:04:58,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:04:58,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:04:58,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:04:58,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:04:58,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:04:58,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:04:58,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:04:58,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:04:58,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:04:58,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:04:58,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:04:58,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:04:58,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:04:58,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:04:58,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:04:58,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:04:58,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:04:58,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:04:58,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:04:58,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:04:58,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:04:58,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:04:58,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:04:58,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:04:58,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:04:58,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:04:58,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:04:58,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:04:58,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:04:58,139 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:04:58,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:04:58,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:04:58,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:04:58,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:04:58,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:04:58,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:04:58,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:04:58,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:04:58,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:04:58,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:04:58,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:04:58,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:04:58,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:04:58,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:04:58,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:04:58,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:04:58,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:04:58,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:04:58,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:04:58,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:04:58,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:04:58,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:04:58,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:04:58,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:04:58,147 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 -> f51cec7aed139d59f5c2c44b39d61d5b9a077bfe [2020-10-20 03:04:58,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:04:58,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:04:58,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:04:58,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:04:58,393 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:04:58,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i [2020-10-20 03:04:58,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7a778ac/acac8575a3d54b6fa137f33cb4e04de9/FLAG872e3245b [2020-10-20 03:04:59,111 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:04:59,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i [2020-10-20 03:04:59,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7a778ac/acac8575a3d54b6fa137f33cb4e04de9/FLAG872e3245b [2020-10-20 03:04:59,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7a778ac/acac8575a3d54b6fa137f33cb4e04de9 [2020-10-20 03:04:59,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:04:59,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:04:59,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:04:59,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:04:59,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:04:59,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:04:59" (1/1) ... [2020-10-20 03:04:59,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bfbf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:04:59, skipping insertion in model container [2020-10-20 03:04:59,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:04:59" (1/1) ... [2020-10-20 03:04:59,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:04:59,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:04:59,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:04:59,944 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:04:59,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:05:00,094 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:05:00,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00 WrapperNode [2020-10-20 03:05:00,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:05:00,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:05:00,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:05:00,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:05:00,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:05:00,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:05:00,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:05:00,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:05:00,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (1/1) ... [2020-10-20 03:05:00,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:05:00,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:05:00,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:05:00,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:05:00,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (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 03:05:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:05:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:05:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:05:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:05:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:05:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:05:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:05:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:05:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:05:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:05:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:05:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:05:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:05:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:05:00,258 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 03:05:00,601 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:05:00,602 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:05:00,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:05:00 BoogieIcfgContainer [2020-10-20 03:05:00,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:05:00,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:05:00,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:05:00,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:05:00,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:04:59" (1/3) ... [2020-10-20 03:05:00,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d87dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:05:00, skipping insertion in model container [2020-10-20 03:05:00,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:05:00" (2/3) ... [2020-10-20 03:05:00,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d87dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:05:00, skipping insertion in model container [2020-10-20 03:05:00,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:05:00" (3/3) ... [2020-10-20 03:05:00,614 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-10-20 03:05:00,626 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:05:00,626 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:05:00,633 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:05:00,635 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:05:00,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,683 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:05:00,698 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:05:00,710 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:05:00,726 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:05:00,726 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:05:00,726 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:05:00,726 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:05:00,727 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:05:00,727 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:05:00,727 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:05:00,727 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:05:00,740 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:05:00,743 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:05:00,746 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:05:00,748 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-20 03:05:00,798 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-20 03:05:00,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:05:00,804 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:05:00,807 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:05:02,496 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-10-20 03:05:03,008 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-20 03:05:03,107 INFO L132 LiptonReduction]: Checked pairs total: 2774 [2020-10-20 03:05:03,107 INFO L134 LiptonReduction]: Total number of compositions: 73 [2020-10-20 03:05:03,114 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-20 03:05:03,141 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-20 03:05:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-20 03:05:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:05:03,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:03,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:03,153 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:03,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1189021961, now seen corresponding path program 1 times [2020-10-20 03:05:03,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:03,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189721543] [2020-10-20 03:05:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:03,393 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 03:05:03,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189721543] [2020-10-20 03:05:03,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:03,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:05:03,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172019234] [2020-10-20 03:05:03,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:03,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:03,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:03,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,416 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-20 03:05:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:03,480 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-20 03:05:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:03,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 03:05:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:03,498 INFO L225 Difference]: With dead ends: 282 [2020-10-20 03:05:03,498 INFO L226 Difference]: Without dead ends: 218 [2020-10-20 03:05:03,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-20 03:05:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-20 03:05:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-20 03:05:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-20 03:05:03,567 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-20 03:05:03,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:03,568 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-20 03:05:03,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:03,568 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-20 03:05:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:05:03,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:03,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:03,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:05:03,571 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:03,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1771488223, now seen corresponding path program 1 times [2020-10-20 03:05:03,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:03,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074702983] [2020-10-20 03:05:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:03,689 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 03:05:03,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074702983] [2020-10-20 03:05:03,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:03,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:03,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933843129] [2020-10-20 03:05:03,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:03,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:03,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:03,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,693 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-20 03:05:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:03,714 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-20 03:05:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:03,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:05:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:03,718 INFO L225 Difference]: With dead ends: 202 [2020-10-20 03:05:03,719 INFO L226 Difference]: Without dead ends: 202 [2020-10-20 03:05:03,720 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 03:05:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-20 03:05:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-20 03:05:03,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-20 03:05:03,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-20 03:05:03,739 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-20 03:05:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:03,739 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-20 03:05:03,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-20 03:05:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:05:03,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:03,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:03,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:05:03,742 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:03,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:03,743 INFO L82 PathProgramCache]: Analyzing trace with hash -918442191, now seen corresponding path program 1 times [2020-10-20 03:05:03,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:03,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013434455] [2020-10-20 03:05:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:03,792 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 03:05:03,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013434455] [2020-10-20 03:05:03,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:03,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:05:03,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907376446] [2020-10-20 03:05:03,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:03,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:03,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:03,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,794 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-20 03:05:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:03,808 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-20 03:05:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:03,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 03:05:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:03,812 INFO L225 Difference]: With dead ends: 198 [2020-10-20 03:05:03,812 INFO L226 Difference]: Without dead ends: 198 [2020-10-20 03:05:03,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-20 03:05:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-20 03:05:03,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-20 03:05:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-20 03:05:03,847 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-20 03:05:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:03,848 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-20 03:05:03,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-20 03:05:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:05:03,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:03,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:03,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:05:03,851 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:03,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1593061887, now seen corresponding path program 1 times [2020-10-20 03:05:03,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:03,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390511545] [2020-10-20 03:05:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:03,916 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 03:05:03,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390511545] [2020-10-20 03:05:03,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:03,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:05:03,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068652122] [2020-10-20 03:05:03,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:03,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:03,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:03,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,919 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-20 03:05:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:03,929 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-20 03:05:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:03,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 03:05:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:03,934 INFO L225 Difference]: With dead ends: 192 [2020-10-20 03:05:03,934 INFO L226 Difference]: Without dead ends: 192 [2020-10-20 03:05:03,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-20 03:05:03,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-20 03:05:03,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-20 03:05:03,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-20 03:05:03,971 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-20 03:05:03,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:03,973 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-20 03:05:03,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:03,974 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-20 03:05:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:05:03,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:03,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:03,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:05:03,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:03,980 INFO L82 PathProgramCache]: Analyzing trace with hash 2114610558, now seen corresponding path program 1 times [2020-10-20 03:05:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:03,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313603209] [2020-10-20 03:05:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,043 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 03:05:04,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313603209] [2020-10-20 03:05:04,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:04,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496045758] [2020-10-20 03:05:04,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:05:04,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:05:04,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:05:04,046 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 3 states. [2020-10-20 03:05:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,061 INFO L93 Difference]: Finished difference Result 248 states and 635 transitions. [2020-10-20 03:05:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:05:04,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-20 03:05:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,064 INFO L225 Difference]: With dead ends: 248 [2020-10-20 03:05:04,064 INFO L226 Difference]: Without dead ends: 200 [2020-10-20 03:05:04,065 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 03:05:04,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-20 03:05:04,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 188. [2020-10-20 03:05:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-20 03:05:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 475 transitions. [2020-10-20 03:05:04,073 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 475 transitions. Word has length 12 [2020-10-20 03:05:04,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,074 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 475 transitions. [2020-10-20 03:05:04,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:05:04,074 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 475 transitions. [2020-10-20 03:05:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:05:04,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:04,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:04,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:05:04,077 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:04,077 INFO L82 PathProgramCache]: Analyzing trace with hash 2115787814, now seen corresponding path program 1 times [2020-10-20 03:05:04,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:04,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430013000] [2020-10-20 03:05:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,118 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 03:05:04,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430013000] [2020-10-20 03:05:04,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:05:04,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625694567] [2020-10-20 03:05:04,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:04,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:04,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:04,121 INFO L87 Difference]: Start difference. First operand 188 states and 475 transitions. Second operand 4 states. [2020-10-20 03:05:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,155 INFO L93 Difference]: Finished difference Result 260 states and 643 transitions. [2020-10-20 03:05:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:05:04,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 03:05:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,158 INFO L225 Difference]: With dead ends: 260 [2020-10-20 03:05:04,158 INFO L226 Difference]: Without dead ends: 188 [2020-10-20 03:05:04,158 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 03:05:04,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-20 03:05:04,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-20 03:05:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-20 03:05:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 467 transitions. [2020-10-20 03:05:04,166 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 467 transitions. Word has length 12 [2020-10-20 03:05:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,166 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 467 transitions. [2020-10-20 03:05:04,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 467 transitions. [2020-10-20 03:05:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:05:04,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:04,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:04,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:05:04,169 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:04,169 INFO L82 PathProgramCache]: Analyzing trace with hash 2140264484, now seen corresponding path program 2 times [2020-10-20 03:05:04,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:04,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461324063] [2020-10-20 03:05:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,244 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 03:05:04,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461324063] [2020-10-20 03:05:04,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:04,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347470827] [2020-10-20 03:05:04,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:04,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:04,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:04,246 INFO L87 Difference]: Start difference. First operand 188 states and 467 transitions. Second operand 4 states. [2020-10-20 03:05:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,283 INFO L93 Difference]: Finished difference Result 221 states and 507 transitions. [2020-10-20 03:05:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:05:04,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 03:05:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,285 INFO L225 Difference]: With dead ends: 221 [2020-10-20 03:05:04,285 INFO L226 Difference]: Without dead ends: 157 [2020-10-20 03:05:04,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-20 03:05:04,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-10-20 03:05:04,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-20 03:05:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 352 transitions. [2020-10-20 03:05:04,292 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 352 transitions. Word has length 12 [2020-10-20 03:05:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,293 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 352 transitions. [2020-10-20 03:05:04,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 352 transitions. [2020-10-20 03:05:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:05:04,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:04,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:04,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:05:04,295 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:04,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:04,295 INFO L82 PathProgramCache]: Analyzing trace with hash 596662620, now seen corresponding path program 1 times [2020-10-20 03:05:04,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:04,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223120745] [2020-10-20 03:05:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,346 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 03:05:04,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223120745] [2020-10-20 03:05:04,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:05:04,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457607474] [2020-10-20 03:05:04,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:05:04,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:05:04,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:04,349 INFO L87 Difference]: Start difference. First operand 157 states and 352 transitions. Second operand 5 states. [2020-10-20 03:05:04,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,392 INFO L93 Difference]: Finished difference Result 159 states and 336 transitions. [2020-10-20 03:05:04,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:05:04,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:05:04,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,394 INFO L225 Difference]: With dead ends: 159 [2020-10-20 03:05:04,394 INFO L226 Difference]: Without dead ends: 122 [2020-10-20 03:05:04,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:05:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-20 03:05:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-20 03:05:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-20 03:05:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 253 transitions. [2020-10-20 03:05:04,400 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 253 transitions. Word has length 13 [2020-10-20 03:05:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,401 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 253 transitions. [2020-10-20 03:05:04,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:05:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 253 transitions. [2020-10-20 03:05:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 03:05:04,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:04,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:05:04,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 03:05:04,403 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:04,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2125100997, now seen corresponding path program 1 times [2020-10-20 03:05:04,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:04,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955281746] [2020-10-20 03:05:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,462 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 03:05:04,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955281746] [2020-10-20 03:05:04,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:05:04,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383180791] [2020-10-20 03:05:04,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:05:04,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:05:04,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:05:04,465 INFO L87 Difference]: Start difference. First operand 122 states and 253 transitions. Second operand 6 states. [2020-10-20 03:05:04,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,530 INFO L93 Difference]: Finished difference Result 118 states and 243 transitions. [2020-10-20 03:05:04,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:05:04,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 03:05:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,532 INFO L225 Difference]: With dead ends: 118 [2020-10-20 03:05:04,532 INFO L226 Difference]: Without dead ends: 54 [2020-10-20 03:05:04,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:05:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-20 03:05:04,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-20 03:05:04,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-20 03:05:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 97 transitions. [2020-10-20 03:05:04,535 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 97 transitions. Word has length 15 [2020-10-20 03:05:04,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,535 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 97 transitions. [2020-10-20 03:05:04,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:05:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-10-20 03:05:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:05:04,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:04,536 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 03:05:04,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 03:05:04,537 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:04,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:04,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2097589764, now seen corresponding path program 1 times [2020-10-20 03:05:04,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:04,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127860728] [2020-10-20 03:05:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,572 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 03:05:04,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127860728] [2020-10-20 03:05:04,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:05:04,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606317062] [2020-10-20 03:05:04,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:04,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:04,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:04,574 INFO L87 Difference]: Start difference. First operand 54 states and 97 transitions. Second operand 4 states. [2020-10-20 03:05:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,594 INFO L93 Difference]: Finished difference Result 63 states and 110 transitions. [2020-10-20 03:05:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:05:04,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:05:04,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,595 INFO L225 Difference]: With dead ends: 63 [2020-10-20 03:05:04,595 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 03:05:04,596 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 03:05:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 03:05:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 03:05:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 03:05:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-10-20 03:05:04,598 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-10-20 03:05:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,598 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-10-20 03:05:04,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-10-20 03:05:04,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:05:04,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:05:04,599 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 03:05:04,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 03:05:04,600 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:05:04,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:05:04,601 INFO L82 PathProgramCache]: Analyzing trace with hash -281731452, now seen corresponding path program 2 times [2020-10-20 03:05:04,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:05:04,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556689108] [2020-10-20 03:05:04,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:05:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:05:04,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:05:04,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556689108] [2020-10-20 03:05:04,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:05:04,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:05:04,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547803330] [2020-10-20 03:05:04,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:05:04,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:05:04,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:05:04,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:05:04,642 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-10-20 03:05:04,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:05:04,657 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-10-20 03:05:04,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:05:04,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:05:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:05:04,659 INFO L225 Difference]: With dead ends: 34 [2020-10-20 03:05:04,659 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:05:04,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:05:04,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:05:04,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:05:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:05:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:05:04,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-20 03:05:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:05:04,661 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:05:04,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:05:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:05:04,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:05:04,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 03:05:04,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:05:04 BasicIcfg [2020-10-20 03:05:04,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:05:04,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:05:04,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:05:04,667 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:05:04,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:05:00" (3/4) ... [2020-10-20 03:05:04,671 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:05:04,679 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:05:04,680 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:05:04,680 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:05:04,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:05:04,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:05:04,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:05:04,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:05:04,738 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:05:04,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:05:04,740 INFO L168 Benchmark]: Toolchain (without parser) took 5319.63 ms. Allocated memory was 40.9 MB in the beginning and 70.8 MB in the end (delta: 29.9 MB). Free memory was 17.3 MB in the beginning and 23.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,741 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.4 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.72 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 16.4 MB in the beginning and 25.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.37 ms. Allocated memory is still 43.5 MB. Free memory was 25.1 MB in the beginning and 23.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,743 INFO L168 Benchmark]: Boogie Preprocessor took 27.09 ms. Allocated memory is still 43.5 MB. Free memory was 23.1 MB in the beginning and 21.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,744 INFO L168 Benchmark]: RCFGBuilder took 430.01 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 21.4 MB in the beginning and 13.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,745 INFO L168 Benchmark]: TraceAbstraction took 4059.93 ms. Allocated memory was 44.6 MB in the beginning and 70.8 MB in the end (delta: 26.2 MB). Free memory was 12.4 MB in the beginning and 26.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,746 INFO L168 Benchmark]: Witness Printer took 72.36 ms. Allocated memory is still 70.8 MB. Free memory was 26.7 MB in the beginning and 23.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:05:04,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.4 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 668.72 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 16.4 MB in the beginning and 25.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 50.37 ms. Allocated memory is still 43.5 MB. Free memory was 25.1 MB in the beginning and 23.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.09 ms. Allocated memory is still 43.5 MB. Free memory was 23.1 MB in the beginning and 21.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 430.01 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 21.4 MB in the beginning and 13.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4059.93 ms. Allocated memory was 44.6 MB in the beginning and 70.8 MB in the end (delta: 26.2 MB). Free memory was 12.4 MB in the beginning and 26.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * Witness Printer took 72.36 ms. Allocated memory is still 70.8 MB. Free memory was 26.7 MB in the beginning and 23.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 891 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 55 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2774 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 220 SDtfs, 143 SDslu, 240 SDs, 0 SdLazy, 133 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...