/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:58:24,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:58:24,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:58:24,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:58:24,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:58:24,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:58:24,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:58:24,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:58:24,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:58:24,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:58:24,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:58:24,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:58:24,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:58:24,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:58:24,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:58:24,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:58:24,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:58:24,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:58:24,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:58:24,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:58:25,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:58:25,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:58:25,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:58:25,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:58:25,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:58:25,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:58:25,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:58:25,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:58:25,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:58:25,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:58:25,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:58:25,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:58:25,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:58:25,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:58:25,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:58:25,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:58:25,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:58:25,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:58:25,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:58:25,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:58:25,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:58:25,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 12:58:25,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:58:25,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:58:25,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:58:25,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:58:25,069 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:58:25,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:58:25,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:58:25,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:58:25,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:58:25,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:58:25,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:58:25,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:58:25,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:58:25,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:58:25,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:58:25,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:58:25,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:58:25,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:58:25,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:58:25,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:58:25,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:58:25,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:58:25,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:58:25,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:58:25,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:58:25,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:58:25,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:58:25,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:58:25,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:58:25,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:58:25,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:58:25,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:58:25,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:58:25,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:58:25,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:58:25,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-09 12:58:25,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50aa50f31/c2caba60d3484dffa734a0c455b2cba6/FLAG9f98d442a [2020-10-09 12:58:26,011 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:58:26,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-09 12:58:26,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50aa50f31/c2caba60d3484dffa734a0c455b2cba6/FLAG9f98d442a [2020-10-09 12:58:26,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50aa50f31/c2caba60d3484dffa734a0c455b2cba6 [2020-10-09 12:58:26,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:58:26,349 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:58:26,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:58:26,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:58:26,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:58:26,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:58:26" (1/1) ... [2020-10-09 12:58:26,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ba5f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:26, skipping insertion in model container [2020-10-09 12:58:26,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:58:26" (1/1) ... [2020-10-09 12:58:26,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:58:26,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:58:26,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:58:26,890 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:58:26,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:58:27,006 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:58:27,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27 WrapperNode [2020-10-09 12:58:27,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:58:27,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:58:27,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:58:27,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:58:27,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:58:27,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:58:27,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:58:27,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:58:27,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (1/1) ... [2020-10-09 12:58:27,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:58:27,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:58:27,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:58:27,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:58:27,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (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 [2020-10-09 12:58:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:58:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:58:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:58:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:58:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:58:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:58:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:58:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:58:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 12:58:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 12:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:58:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:58:27,158 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:58:27,515 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:58:27,515 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:58:27,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:58:27 BoogieIcfgContainer [2020-10-09 12:58:27,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:58:27,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:58:27,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:58:27,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:58:27,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:58:26" (1/3) ... [2020-10-09 12:58:27,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffd19b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:58:27, skipping insertion in model container [2020-10-09 12:58:27,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:27" (2/3) ... [2020-10-09 12:58:27,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffd19b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:58:27, skipping insertion in model container [2020-10-09 12:58:27,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:58:27" (3/3) ... [2020-10-09 12:58:27,525 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2020-10-09 12:58:27,535 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:58:27,536 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:58:27,543 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:58:27,544 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:58:27,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,576 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,578 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,578 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,579 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,580 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,580 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,580 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,580 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,581 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,581 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,594 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,594 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:27,610 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 12:58:27,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:58:27,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:58:27,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:58:27,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:58:27,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:58:27,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:58:27,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:58:27,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:58:27,646 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:58:27,649 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-09 12:58:27,652 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-09 12:58:27,654 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-09 12:58:27,697 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-09 12:58:27,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:58:27,709 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-09 12:58:27,711 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-09 12:58:29,080 INFO L132 LiptonReduction]: Checked pairs total: 2372 [2020-10-09 12:58:29,081 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-09 12:58:29,088 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-09 12:58:29,113 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-09 12:58:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-09 12:58:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-09 12:58:29,124 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:29,125 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:29,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:29,131 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-10-09 12:58:29,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:29,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589546136] [2020-10-09 12:58:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:29,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589546136] [2020-10-09 12:58:29,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:29,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:58:29,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982946819] [2020-10-09 12:58:29,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 12:58:29,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:29,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 12:58:29,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 12:58:29,335 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-09 12:58:29,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:29,366 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-09 12:58:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 12:58:29,368 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-09 12:58:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:29,385 INFO L225 Difference]: With dead ends: 274 [2020-10-09 12:58:29,385 INFO L226 Difference]: Without dead ends: 226 [2020-10-09 12:58:29,387 INFO L673 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 [2020-10-09 12:58:29,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-09 12:58:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-09 12:58:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-09 12:58:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-09 12:58:29,455 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-09 12:58:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:29,456 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-09 12:58:29,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 12:58:29,456 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-09 12:58:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 12:58:29,458 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:29,458 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:29,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:58:29,458 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:29,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:29,459 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-10-09 12:58:29,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:29,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559630010] [2020-10-09 12:58:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:29,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559630010] [2020-10-09 12:58:29,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:29,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:58:29,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936951991] [2020-10-09 12:58:29,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:58:29,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:29,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:58:29,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:29,642 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 5 states. [2020-10-09 12:58:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:29,720 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-10-09 12:58:29,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 12:58:29,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-09 12:58:29,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:29,723 INFO L225 Difference]: With dead ends: 250 [2020-10-09 12:58:29,724 INFO L226 Difference]: Without dead ends: 202 [2020-10-09 12:58:29,725 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:58:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-09 12:58:29,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-09 12:58:29,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-09 12:58:29,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-10-09 12:58:29,743 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-10-09 12:58:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:29,743 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-10-09 12:58:29,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:58:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-10-09 12:58:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-09 12:58:29,746 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:29,746 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:29,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:58:29,746 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:29,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times [2020-10-09 12:58:29,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:29,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479328774] [2020-10-09 12:58:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:29,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479328774] [2020-10-09 12:58:29,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:29,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:58:29,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152199507] [2020-10-09 12:58:29,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:58:29,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:29,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:58:29,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:58:29,889 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 6 states. [2020-10-09 12:58:29,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:29,996 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions. [2020-10-09 12:58:29,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-09 12:58:29,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-09 12:58:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:29,998 INFO L225 Difference]: With dead ends: 262 [2020-10-09 12:58:29,998 INFO L226 Difference]: Without dead ends: 154 [2020-10-09 12:58:29,999 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-09 12:58:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-09 12:58:30,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-09 12:58:30,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-09 12:58:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions. [2020-10-09 12:58:30,009 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10 [2020-10-09 12:58:30,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,009 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions. [2020-10-09 12:58:30,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:58:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions. [2020-10-09 12:58:30,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:58:30,011 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,011 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:58:30,012 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1312152701, now seen corresponding path program 1 times [2020-10-09 12:58:30,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618493887] [2020-10-09 12:58:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618493887] [2020-10-09 12:58:30,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:58:30,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87490006] [2020-10-09 12:58:30,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:30,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:30,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:30,068 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 4 states. [2020-10-09 12:58:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,086 INFO L93 Difference]: Finished difference Result 174 states and 426 transitions. [2020-10-09 12:58:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:58:30,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-09 12:58:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,088 INFO L225 Difference]: With dead ends: 174 [2020-10-09 12:58:30,088 INFO L226 Difference]: Without dead ends: 150 [2020-10-09 12:58:30,089 INFO L673 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 [2020-10-09 12:58:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-09 12:58:30,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-09 12:58:30,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-09 12:58:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-10-09 12:58:30,097 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-10-09 12:58:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,097 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-10-09 12:58:30,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-10-09 12:58:30,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:58:30,099 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,099 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:58:30,100 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,100 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-10-09 12:58:30,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406017385] [2020-10-09 12:58:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406017385] [2020-10-09 12:58:30,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:58:30,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549513955] [2020-10-09 12:58:30,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:30,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:30,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:30,179 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-10-09 12:58:30,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,213 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-10-09 12:58:30,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:58:30,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 12:58:30,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,215 INFO L225 Difference]: With dead ends: 164 [2020-10-09 12:58:30,216 INFO L226 Difference]: Without dead ends: 128 [2020-10-09 12:58:30,216 INFO L673 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 [2020-10-09 12:58:30,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-09 12:58:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-09 12:58:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-09 12:58:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-10-09 12:58:30,222 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-10-09 12:58:30,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,223 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-10-09 12:58:30,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-10-09 12:58:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:58:30,224 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,224 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:58:30,225 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-10-09 12:58:30,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969207613] [2020-10-09 12:58:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969207613] [2020-10-09 12:58:30,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:58:30,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617867500] [2020-10-09 12:58:30,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:58:30,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:58:30,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:30,281 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-10-09 12:58:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,326 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-10-09 12:58:30,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:58:30,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-09 12:58:30,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,328 INFO L225 Difference]: With dead ends: 116 [2020-10-09 12:58:30,328 INFO L226 Difference]: Without dead ends: 92 [2020-10-09 12:58:30,329 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:58:30,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-09 12:58:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-09 12:58:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-09 12:58:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-10-09 12:58:30,333 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-10-09 12:58:30,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,333 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-10-09 12:58:30,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:58:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-10-09 12:58:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:58:30,334 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,335 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 12:58:30,335 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,336 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-10-09 12:58:30,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490316935] [2020-10-09 12:58:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490316935] [2020-10-09 12:58:30,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:58:30,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26375305] [2020-10-09 12:58:30,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:30,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:30,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:30,377 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-10-09 12:58:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,395 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-10-09 12:58:30,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:58:30,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-09 12:58:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,397 INFO L225 Difference]: With dead ends: 120 [2020-10-09 12:58:30,397 INFO L226 Difference]: Without dead ends: 94 [2020-10-09 12:58:30,397 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:30,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-09 12:58:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-09 12:58:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-09 12:58:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-10-09 12:58:30,401 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-10-09 12:58:30,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,402 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-10-09 12:58:30,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:30,402 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-10-09 12:58:30,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-09 12:58:30,403 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,403 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 12:58:30,403 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-10-09 12:58:30,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314914548] [2020-10-09 12:58:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314914548] [2020-10-09 12:58:30,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-09 12:58:30,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027188761] [2020-10-09 12:58:30,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-09 12:58:30,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-09 12:58:30,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-09 12:58:30,492 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 9 states. [2020-10-09 12:58:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,644 INFO L93 Difference]: Finished difference Result 119 states and 221 transitions. [2020-10-09 12:58:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-09 12:58:30,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-09 12:58:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,646 INFO L225 Difference]: With dead ends: 119 [2020-10-09 12:58:30,646 INFO L226 Difference]: Without dead ends: 76 [2020-10-09 12:58:30,647 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-09 12:58:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-09 12:58:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-10-09 12:58:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-09 12:58:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 123 transitions. [2020-10-09 12:58:30,650 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 123 transitions. Word has length 15 [2020-10-09 12:58:30,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,651 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 123 transitions. [2020-10-09 12:58:30,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-09 12:58:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2020-10-09 12:58:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-09 12:58:30,653 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,654 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-09 12:58:30,654 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-10-09 12:58:30,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634933665] [2020-10-09 12:58:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634933665] [2020-10-09 12:58:30,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-09 12:58:30,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763121522] [2020-10-09 12:58:30,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:58:30,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:58:30,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:58:30,724 INFO L87 Difference]: Start difference. First operand 72 states and 123 transitions. Second operand 6 states. [2020-10-09 12:58:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,760 INFO L93 Difference]: Finished difference Result 65 states and 108 transitions. [2020-10-09 12:58:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 12:58:30,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-09 12:58:30,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,761 INFO L225 Difference]: With dead ends: 65 [2020-10-09 12:58:30,761 INFO L226 Difference]: Without dead ends: 28 [2020-10-09 12:58:30,761 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:58:30,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-09 12:58:30,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-09 12:58:30,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-09 12:58:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-10-09 12:58:30,763 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 15 [2020-10-09 12:58:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,764 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-10-09 12:58:30,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:58:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-10-09 12:58:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-09 12:58:30,764 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:30,765 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:30,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-09 12:58:30,765 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1777188338, now seen corresponding path program 1 times [2020-10-09 12:58:30,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:30,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252705410] [2020-10-09 12:58:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:30,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:30,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252705410] [2020-10-09 12:58:30,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:30,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-09 12:58:30,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888539203] [2020-10-09 12:58:30,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-09 12:58:30,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-09 12:58:30,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-09 12:58:30,893 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand 10 states. [2020-10-09 12:58:30,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:30,965 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-10-09 12:58:30,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 12:58:30,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-09 12:58:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:30,966 INFO L225 Difference]: With dead ends: 27 [2020-10-09 12:58:30,966 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:58:30,966 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-09 12:58:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:58:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:58:30,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:58:30,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:58:30,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-09 12:58:30,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:30,968 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:58:30,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-09 12:58:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:58:30,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:58:30,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-09 12:58:30,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:58:30 BasicIcfg [2020-10-09 12:58:30,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:58:30,975 INFO L168 Benchmark]: Toolchain (without parser) took 4625.20 ms. Allocated memory was 254.3 MB in the beginning and 373.8 MB in the end (delta: 119.5 MB). Free memory was 206.9 MB in the beginning and 182.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 144.4 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:30,975 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 254.3 MB. Free memory is still 228.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:58:30,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.55 ms. Allocated memory was 254.3 MB in the beginning and 323.0 MB in the end (delta: 68.7 MB). Free memory was 206.9 MB in the beginning and 276.1 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:30,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.00 ms. Allocated memory is still 323.0 MB. Free memory was 276.1 MB in the beginning and 273.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:30,978 INFO L168 Benchmark]: Boogie Preprocessor took 26.63 ms. Allocated memory is still 323.0 MB. Free memory was 273.6 MB in the beginning and 271.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:30,979 INFO L168 Benchmark]: RCFGBuilder took 431.34 ms. Allocated memory is still 323.0 MB. Free memory was 271.1 MB in the beginning and 249.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:30,979 INFO L168 Benchmark]: TraceAbstraction took 3453.78 ms. Allocated memory was 323.0 MB in the beginning and 373.8 MB in the end (delta: 50.9 MB). Free memory was 249.2 MB in the beginning and 182.0 MB in the end (delta: 67.2 MB). Peak memory consumption was 118.0 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:30,983 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 254.3 MB. Free memory is still 228.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 656.55 ms. Allocated memory was 254.3 MB in the beginning and 323.0 MB in the end (delta: 68.7 MB). Free memory was 206.9 MB in the beginning and 276.1 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.00 ms. Allocated memory is still 323.0 MB. Free memory was 276.1 MB in the beginning and 273.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.63 ms. Allocated memory is still 323.0 MB. Free memory was 273.6 MB in the beginning and 271.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 431.34 ms. Allocated memory is still 323.0 MB. Free memory was 271.1 MB in the beginning and 249.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3453.78 ms. Allocated memory was 323.0 MB in the beginning and 373.8 MB in the end (delta: 50.9 MB). Free memory was 249.2 MB in the beginning and 182.0 MB in the end (delta: 67.2 MB). Peak memory consumption was 118.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 738 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 44 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 31 PlacesAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 2372 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 186 SDtfs, 233 SDslu, 439 SDs, 0 SdLazy, 320 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 6072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...