./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe030_tso.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/safe030_tso.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 cf3ac498255e2c15379e1132c88b889a830f4be4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:07:43,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:07:43,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:07:43,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:07:43,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:07:44,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:07:44,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:07:44,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:07:44,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:07:44,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:07:44,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:07:44,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:07:44,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:07:44,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:07:44,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:07:44,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:07:44,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:07:44,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:07:44,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:07:44,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:07:44,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:07:44,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:07:44,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:07:44,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:07:44,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:07:44,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:07:44,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:07:44,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:07:44,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:07:44,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:07:44,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:07:44,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:07:44,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:07:44,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:07:44,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:07:44,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:07:44,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:07:44,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:07:44,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:07:44,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:07:44,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:07:44,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:07:44,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:07:44,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:07:44,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:07:44,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:07:44,070 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:07:44,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:07:44,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:07:44,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:07:44,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:07:44,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:07:44,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:07:44,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:07:44,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:07:44,072 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:07:44,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:07:44,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:07:44,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:07:44,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:07:44,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:07:44,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:07:44,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:07:44,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:07:44,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:07:44,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:07:44,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:07:44,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:07:44,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:07:44,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:07:44,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:07:44,076 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 -> cf3ac498255e2c15379e1132c88b889a830f4be4 [2020-10-20 03:07:44,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:07:44,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:07:44,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:07:44,279 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:07:44,279 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:07:44,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2020-10-20 03:07:44,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9dbfbd71/0e306c0741fe483dbcb774f26b8dd99d/FLAGde2484ba6 [2020-10-20 03:07:44,866 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:07:44,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2020-10-20 03:07:44,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9dbfbd71/0e306c0741fe483dbcb774f26b8dd99d/FLAGde2484ba6 [2020-10-20 03:07:45,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9dbfbd71/0e306c0741fe483dbcb774f26b8dd99d [2020-10-20 03:07:45,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:07:45,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:07:45,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:45,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:07:45,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:07:45,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd4b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45, skipping insertion in model container [2020-10-20 03:07:45,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:07:45,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:07:45,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:45,689 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:07:45,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:45,857 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:07:45,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45 WrapperNode [2020-10-20 03:07:45,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:45,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:45,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:07:45,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:07:45,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:45,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:07:45,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:07:45,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:07:45,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (1/1) ... [2020-10-20 03:07:45,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:07:45,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:07:45,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:07:45,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:07:45,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (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 03:07:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:07:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:07:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:07:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:07:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:07:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:07:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:07:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:07:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:07:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:07:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:07:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:07:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:07:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:07:46,009 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 03:07:46,372 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:07:46,372 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:07:46,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:46 BoogieIcfgContainer [2020-10-20 03:07:46,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:07:46,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:07:46,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:07:46,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:07:46,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:07:45" (1/3) ... [2020-10-20 03:07:46,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236b38c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:46, skipping insertion in model container [2020-10-20 03:07:46,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:45" (2/3) ... [2020-10-20 03:07:46,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236b38c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:46, skipping insertion in model container [2020-10-20 03:07:46,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:46" (3/3) ... [2020-10-20 03:07:46,383 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-10-20 03:07:46,395 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:07:46,395 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:07:46,411 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:07:46,412 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:07:46,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,439 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,440 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,442 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,442 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,443 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,449 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,449 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,454 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,454 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,457 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,457 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:46,459 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:07:46,469 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:07:46,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:07:46,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:07:46,485 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:07:46,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:07:46,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:07:46,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:07:46,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:07:46,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:07:46,498 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:07:46,501 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-20 03:07:46,504 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-20 03:07:46,505 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-20 03:07:46,555 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-20 03:07:46,555 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:07:46,564 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 63 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:07:46,566 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:07:48,176 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-20 03:07:48,313 INFO L132 LiptonReduction]: Checked pairs total: 3066 [2020-10-20 03:07:48,314 INFO L134 LiptonReduction]: Total number of compositions: 66 [2020-10-20 03:07:48,321 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-20 03:07:48,353 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-20 03:07:48,355 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-20 03:07:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:07:48,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:48,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:48,365 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:48,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:48,370 INFO L82 PathProgramCache]: Analyzing trace with hash 147242941, now seen corresponding path program 1 times [2020-10-20 03:07:48,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:48,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634367914] [2020-10-20 03:07:48,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:48,567 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 03:07:48,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634367914] [2020-10-20 03:07:48,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:48,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:48,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377278621] [2020-10-20 03:07:48,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:07:48,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:48,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:07:48,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:07:48,612 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-20 03:07:48,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:48,668 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-20 03:07:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:07:48,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 03:07:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:48,691 INFO L225 Difference]: With dead ends: 362 [2020-10-20 03:07:48,692 INFO L226 Difference]: Without dead ends: 298 [2020-10-20 03:07:48,693 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 03:07:48,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-20 03:07:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-20 03:07:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-20 03:07:48,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-20 03:07:48,769 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-20 03:07:48,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:48,770 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-20 03:07:48,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:07:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-20 03:07:48,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:07:48,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:48,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:48,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:07:48,773 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:48,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:48,774 INFO L82 PathProgramCache]: Analyzing trace with hash 269557700, now seen corresponding path program 1 times [2020-10-20 03:07:48,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:48,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591824939] [2020-10-20 03:07:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:48,877 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 03:07:48,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591824939] [2020-10-20 03:07:48,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:48,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:48,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931724303] [2020-10-20 03:07:48,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:48,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:48,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:48,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:48,881 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-20 03:07:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:48,896 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-20 03:07:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:48,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:07:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:48,899 INFO L225 Difference]: With dead ends: 217 [2020-10-20 03:07:48,900 INFO L226 Difference]: Without dead ends: 217 [2020-10-20 03:07:48,901 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 03:07:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-20 03:07:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-20 03:07:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-20 03:07:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-20 03:07:48,934 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-20 03:07:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:48,934 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-20 03:07:48,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-20 03:07:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:07:48,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:48,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:48,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:07:48,939 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:48,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:48,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1876534856, now seen corresponding path program 1 times [2020-10-20 03:07:48,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:48,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4047232] [2020-10-20 03:07:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:49,023 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 03:07:49,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4047232] [2020-10-20 03:07:49,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:49,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:49,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871421404] [2020-10-20 03:07:49,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:49,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:49,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:49,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:49,025 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-20 03:07:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:49,049 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-20 03:07:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:49,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 03:07:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:49,051 INFO L225 Difference]: With dead ends: 136 [2020-10-20 03:07:49,051 INFO L226 Difference]: Without dead ends: 136 [2020-10-20 03:07:49,051 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 03:07:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-20 03:07:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-20 03:07:49,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-20 03:07:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-20 03:07:49,059 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-20 03:07:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:49,060 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-20 03:07:49,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:49,060 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-20 03:07:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 03:07:49,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:49,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:49,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:07:49,062 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:49,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:49,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1466848330, now seen corresponding path program 1 times [2020-10-20 03:07:49,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:49,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123585286] [2020-10-20 03:07:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:49,142 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 03:07:49,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123585286] [2020-10-20 03:07:49,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:49,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:07:49,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561152507] [2020-10-20 03:07:49,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:07:49,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:49,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:07:49,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:49,144 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-20 03:07:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:49,175 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-20 03:07:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:07:49,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-20 03:07:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:49,177 INFO L225 Difference]: With dead ends: 109 [2020-10-20 03:07:49,177 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 03:07:49,178 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 03:07:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 03:07:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-20 03:07:49,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 03:07:49,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-20 03:07:49,184 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-20 03:07:49,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:49,184 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-20 03:07:49,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:07:49,184 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-20 03:07:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:07:49,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:49,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:49,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:07:49,187 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:49,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:49,187 INFO L82 PathProgramCache]: Analyzing trace with hash -182122517, now seen corresponding path program 1 times [2020-10-20 03:07:49,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:49,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245729728] [2020-10-20 03:07:49,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:49,254 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 03:07:49,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245729728] [2020-10-20 03:07:49,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:49,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:49,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961529523] [2020-10-20 03:07:49,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:49,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:49,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:49,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:49,257 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-20 03:07:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:49,275 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-20 03:07:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:49,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-20 03:07:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:49,277 INFO L225 Difference]: With dead ends: 135 [2020-10-20 03:07:49,277 INFO L226 Difference]: Without dead ends: 85 [2020-10-20 03:07:49,278 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 03:07:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-20 03:07:49,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-20 03:07:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-20 03:07:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-20 03:07:49,283 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-20 03:07:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:49,283 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-20 03:07:49,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:49,284 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-20 03:07:49,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:07:49,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:49,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:49,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:07:49,286 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:49,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:49,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1711993673, now seen corresponding path program 2 times [2020-10-20 03:07:49,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:49,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896254809] [2020-10-20 03:07:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:49,337 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 03:07:49,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896254809] [2020-10-20 03:07:49,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:49,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:49,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029922924] [2020-10-20 03:07:49,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:49,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:49,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:49,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:49,339 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-20 03:07:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:49,356 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-20 03:07:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:49,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-20 03:07:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:49,358 INFO L225 Difference]: With dead ends: 99 [2020-10-20 03:07:49,358 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 03:07:49,358 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 03:07:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 03:07:49,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 03:07:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 03:07:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-20 03:07:49,361 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-20 03:07:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:49,361 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-20 03:07:49,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-20 03:07:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:07:49,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:49,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:49,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:07:49,363 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:49,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1121061337, now seen corresponding path program 3 times [2020-10-20 03:07:49,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:49,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306755809] [2020-10-20 03:07:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:49,439 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 03:07:49,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306755809] [2020-10-20 03:07:49,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:49,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:49,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019496584] [2020-10-20 03:07:49,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:49,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:49,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:49,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:49,442 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-20 03:07:49,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:49,459 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-20 03:07:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:49,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-20 03:07:49,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:49,460 INFO L225 Difference]: With dead ends: 36 [2020-10-20 03:07:49,460 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:07:49,460 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 03:07:49,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:07:49,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:07:49,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:07:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:07:49,461 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-20 03:07:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:49,462 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:07:49,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:07:49,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:07:49,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:07:49,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:07:49 BasicIcfg [2020-10-20 03:07:49,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:07:49,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:07:49,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:07:49,479 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:07:49,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:46" (3/4) ... [2020-10-20 03:07:49,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:07:49,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:07:49,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:07:49,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:07:49,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:07:49,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:07:49,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:49,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:49,564 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:07:49,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:07:49,573 INFO L168 Benchmark]: Toolchain (without parser) took 4412.31 ms. Allocated memory was 36.2 MB in the beginning and 72.4 MB in the end (delta: 36.2 MB). Free memory was 8.5 MB in the beginning and 47.6 MB in the end (delta: -39.1 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 03:07:49,573 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 36.2 MB. Free memory was 15.2 MB in the beginning and 15.2 MB in the end (delta: 49.0 kB). Peak memory consumption was 49.0 kB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.48 ms. Allocated memory was 36.2 MB in the beginning and 48.2 MB in the end (delta: 12.1 MB). Free memory was 7.6 MB in the beginning and 22.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.31 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 20.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,576 INFO L168 Benchmark]: Boogie Preprocessor took 25.14 ms. Allocated memory is still 48.2 MB. Free memory was 20.1 MB in the beginning and 18.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,577 INFO L168 Benchmark]: RCFGBuilder took 444.24 ms. Allocated memory is still 48.2 MB. Free memory was 18.4 MB in the beginning and 13.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,579 INFO L168 Benchmark]: TraceAbstraction took 3101.86 ms. Allocated memory was 48.2 MB in the beginning and 72.4 MB in the end (delta: 24.1 MB). Free memory was 12.8 MB in the beginning and 50.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,579 INFO L168 Benchmark]: Witness Printer took 85.90 ms. Allocated memory is still 72.4 MB. Free memory was 50.9 MB in the beginning and 47.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:49,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 36.2 MB. Free memory was 15.2 MB in the beginning and 15.2 MB in the end (delta: 49.0 kB). Peak memory consumption was 49.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 699.48 ms. Allocated memory was 36.2 MB in the beginning and 48.2 MB in the end (delta: 12.1 MB). Free memory was 7.6 MB in the beginning and 22.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 46.31 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 20.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.14 ms. Allocated memory is still 48.2 MB. Free memory was 20.1 MB in the beginning and 18.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 444.24 ms. Allocated memory is still 48.2 MB. Free memory was 18.4 MB in the beginning and 13.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3101.86 ms. Allocated memory was 48.2 MB in the beginning and 72.4 MB in the end (delta: 24.1 MB). Free memory was 12.8 MB in the beginning and 50.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 14.3 GB. * Witness Printer took 85.90 ms. Allocated memory is still 72.4 MB. Free memory was 50.9 MB in the beginning and 47.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 936 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 80 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 84 PlacesBefore, 32 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 3066 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: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 128 SDtfs, 64 SDslu, 159 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2488 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...