/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:47:59,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:47:59,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:47:59,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:47:59,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:47:59,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:47:59,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:47:59,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:47:59,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:47:59,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:47:59,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:47:59,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:47:59,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:47:59,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:47:59,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:47:59,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:47:59,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:47:59,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:47:59,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:47:59,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:47:59,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:47:59,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:47:59,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:47:59,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:47:59,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:47:59,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:47:59,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:47:59,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:47:59,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:47:59,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:47:59,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:47:59,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:47:59,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:47:59,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:47:59,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:47:59,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:47:59,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:47:59,564 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:47:59,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:47:59,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:47:59,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:47:59,568 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:47:59,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:47:59,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:47:59,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:47:59,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:47:59,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:47:59,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:47:59,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:47:59,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:47:59,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:47:59,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:47:59,570 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:47:59,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:47:59,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:47:59,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:47:59,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:47:59,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:47:59,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:47:59,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:47:59,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:47:59,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:47:59,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:47:59,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:47:59,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:47:59,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:47:59,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:47:59,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:47:59,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:47:59,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:47:59,907 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:47:59,908 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:47:59,909 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2019-12-19 04:47:59,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5240ae0/6453a1e72b1840949f31124916105460/FLAGfda2c83c2 [2019-12-19 04:48:00,542 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:48:00,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2019-12-19 04:48:00,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5240ae0/6453a1e72b1840949f31124916105460/FLAGfda2c83c2 [2019-12-19 04:48:00,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5240ae0/6453a1e72b1840949f31124916105460 [2019-12-19 04:48:00,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:48:00,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:48:00,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:48:00,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:48:00,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:48:00,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:48:00" (1/1) ... [2019-12-19 04:48:00,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2075a967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:00, skipping insertion in model container [2019-12-19 04:48:00,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:48:00" (1/1) ... [2019-12-19 04:48:00,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:48:00,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:48:01,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:48:01,361 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:48:01,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:48:01,508 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:48:01,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01 WrapperNode [2019-12-19 04:48:01,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:48:01,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:48:01,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:48:01,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:48:01,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:48:01,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:48:01,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:48:01,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:48:01,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (1/1) ... [2019-12-19 04:48:01,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:48:01,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:48:01,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:48:01,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:48:01,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (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 [2019-12-19 04:48:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:48:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:48:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:48:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:48:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:48:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:48:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:48:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:48:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:48:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:48:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 04:48:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 04:48:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:48:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:48:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:48:01,667 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:48:02,075 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:48:02,075 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:48:02,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:48:02 BoogieIcfgContainer [2019-12-19 04:48:02,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:48:02,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:48:02,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:48:02,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:48:02,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:48:00" (1/3) ... [2019-12-19 04:48:02,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460f4984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:48:02, skipping insertion in model container [2019-12-19 04:48:02,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:48:01" (2/3) ... [2019-12-19 04:48:02,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460f4984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:48:02, skipping insertion in model container [2019-12-19 04:48:02,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:48:02" (3/3) ... [2019-12-19 04:48:02,086 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2019-12-19 04:48:02,097 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:48:02,097 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:48:02,105 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:48:02,106 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:48:02,137 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,138 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,138 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,139 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,139 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,139 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,140 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,140 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,140 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,141 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,141 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,141 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,142 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,142 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,142 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,142 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,143 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,143 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,143 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,144 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,144 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,144 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,145 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,145 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,149 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,150 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,150 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,150 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,157 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,157 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,157 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,157 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,160 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,161 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,161 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,161 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,166 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,167 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,167 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,167 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:48:02,185 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 04:48:02,207 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:48:02,207 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:48:02,207 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:48:02,207 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:48:02,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:48:02,208 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:48:02,208 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:48:02,208 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:48:02,220 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 63 transitions [2019-12-19 04:48:02,563 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5471 states. [2019-12-19 04:48:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states. [2019-12-19 04:48:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:48:02,599 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:02,601 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:02,601 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1464482597, now seen corresponding path program 1 times [2019-12-19 04:48:02,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:02,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778562538] [2019-12-19 04:48:02,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:03,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778562538] [2019-12-19 04:48:03,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:03,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:48:03,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361242358] [2019-12-19 04:48:03,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:48:03,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:03,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:48:03,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:48:03,038 INFO L87 Difference]: Start difference. First operand 5471 states. Second operand 4 states. [2019-12-19 04:48:03,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:03,213 INFO L93 Difference]: Finished difference Result 5708 states and 21933 transitions. [2019-12-19 04:48:03,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:48:03,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-12-19 04:48:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:03,263 INFO L225 Difference]: With dead ends: 5708 [2019-12-19 04:48:03,264 INFO L226 Difference]: Without dead ends: 2392 [2019-12-19 04:48:03,268 INFO L631 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 [2019-12-19 04:48:03,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-12-19 04:48:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-12-19 04:48:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-12-19 04:48:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 8936 transitions. [2019-12-19 04:48:03,501 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 8936 transitions. Word has length 34 [2019-12-19 04:48:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:03,503 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 8936 transitions. [2019-12-19 04:48:03,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:48:03,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 8936 transitions. [2019-12-19 04:48:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:48:03,508 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:03,508 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:03,509 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:03,509 INFO L82 PathProgramCache]: Analyzing trace with hash -652001662, now seen corresponding path program 1 times [2019-12-19 04:48:03,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:03,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361290459] [2019-12-19 04:48:03,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:03,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361290459] [2019-12-19 04:48:03,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:03,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:48:03,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092951314] [2019-12-19 04:48:03,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:48:03,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:03,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:48:03,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:48:03,796 INFO L87 Difference]: Start difference. First operand 2392 states and 8936 transitions. Second operand 5 states. [2019-12-19 04:48:03,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:03,923 INFO L93 Difference]: Finished difference Result 2563 states and 9320 transitions. [2019-12-19 04:48:03,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:48:03,924 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-19 04:48:03,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:03,943 INFO L225 Difference]: With dead ends: 2563 [2019-12-19 04:48:03,943 INFO L226 Difference]: Without dead ends: 2308 [2019-12-19 04:48:03,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2019-12-19 04:48:04,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2019-12-19 04:48:04,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-12-19 04:48:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8544 transitions. [2019-12-19 04:48:04,039 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8544 transitions. Word has length 35 [2019-12-19 04:48:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:04,039 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 8544 transitions. [2019-12-19 04:48:04,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:48:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8544 transitions. [2019-12-19 04:48:04,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 04:48:04,044 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:04,045 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:04,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:04,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:04,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2093307712, now seen corresponding path program 1 times [2019-12-19 04:48:04,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:04,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181474701] [2019-12-19 04:48:04,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:04,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181474701] [2019-12-19 04:48:04,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:04,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:48:04,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538485993] [2019-12-19 04:48:04,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:48:04,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:04,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:48:04,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:48:04,239 INFO L87 Difference]: Start difference. First operand 2308 states and 8544 transitions. Second operand 6 states. [2019-12-19 04:48:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:04,378 INFO L93 Difference]: Finished difference Result 2173 states and 7680 transitions. [2019-12-19 04:48:04,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:48:04,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-12-19 04:48:04,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:04,394 INFO L225 Difference]: With dead ends: 2173 [2019-12-19 04:48:04,395 INFO L226 Difference]: Without dead ends: 1930 [2019-12-19 04:48:04,395 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:48:04,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2019-12-19 04:48:04,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2019-12-19 04:48:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-12-19 04:48:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6906 transitions. [2019-12-19 04:48:04,465 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6906 transitions. Word has length 36 [2019-12-19 04:48:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:04,466 INFO L462 AbstractCegarLoop]: Abstraction has 1930 states and 6906 transitions. [2019-12-19 04:48:04,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:48:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6906 transitions. [2019-12-19 04:48:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-19 04:48:04,471 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:04,471 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:04,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:04,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:04,472 INFO L82 PathProgramCache]: Analyzing trace with hash 413695457, now seen corresponding path program 1 times [2019-12-19 04:48:04,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:04,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126111563] [2019-12-19 04:48:04,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:04,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126111563] [2019-12-19 04:48:04,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:04,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:48:04,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867607391] [2019-12-19 04:48:04,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:48:04,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:04,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:48:04,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:04,579 INFO L87 Difference]: Start difference. First operand 1930 states and 6906 transitions. Second operand 7 states. [2019-12-19 04:48:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:04,765 INFO L93 Difference]: Finished difference Result 1363 states and 4530 transitions. [2019-12-19 04:48:04,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:48:04,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-12-19 04:48:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:04,776 INFO L225 Difference]: With dead ends: 1363 [2019-12-19 04:48:04,776 INFO L226 Difference]: Without dead ends: 1174 [2019-12-19 04:48:04,777 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:48:04,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2019-12-19 04:48:04,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2019-12-19 04:48:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-12-19 04:48:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3882 transitions. [2019-12-19 04:48:04,817 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3882 transitions. Word has length 37 [2019-12-19 04:48:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:04,819 INFO L462 AbstractCegarLoop]: Abstraction has 1174 states and 3882 transitions. [2019-12-19 04:48:04,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:48:04,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3882 transitions. [2019-12-19 04:48:04,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:04,824 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:04,825 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:04,825 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:04,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:04,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1379899273, now seen corresponding path program 1 times [2019-12-19 04:48:04,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:04,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081800177] [2019-12-19 04:48:04,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:04,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081800177] [2019-12-19 04:48:04,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:04,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:48:04,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930776429] [2019-12-19 04:48:04,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:48:04,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:04,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:48:04,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:48:04,968 INFO L87 Difference]: Start difference. First operand 1174 states and 3882 transitions. Second operand 6 states. [2019-12-19 04:48:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:05,071 INFO L93 Difference]: Finished difference Result 1903 states and 6303 transitions. [2019-12-19 04:48:05,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:48:05,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-19 04:48:05,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:05,081 INFO L225 Difference]: With dead ends: 1903 [2019-12-19 04:48:05,081 INFO L226 Difference]: Without dead ends: 1066 [2019-12-19 04:48:05,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:48:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-12-19 04:48:05,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2019-12-19 04:48:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-12-19 04:48:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3498 transitions. [2019-12-19 04:48:05,116 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3498 transitions. Word has length 38 [2019-12-19 04:48:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:05,117 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 3498 transitions. [2019-12-19 04:48:05,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:48:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3498 transitions. [2019-12-19 04:48:05,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:05,120 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:05,120 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:05,120 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:05,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:05,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1718693025, now seen corresponding path program 2 times [2019-12-19 04:48:05,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:05,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840402232] [2019-12-19 04:48:05,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:05,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840402232] [2019-12-19 04:48:05,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:05,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:48:05,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318193778] [2019-12-19 04:48:05,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:48:05,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:05,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:48:05,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:48:05,293 INFO L87 Difference]: Start difference. First operand 1066 states and 3498 transitions. Second operand 8 states. [2019-12-19 04:48:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:05,576 INFO L93 Difference]: Finished difference Result 2407 states and 8022 transitions. [2019-12-19 04:48:05,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:48:05,577 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-12-19 04:48:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:05,585 INFO L225 Difference]: With dead ends: 2407 [2019-12-19 04:48:05,586 INFO L226 Difference]: Without dead ends: 1177 [2019-12-19 04:48:05,586 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:48:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2019-12-19 04:48:05,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1015. [2019-12-19 04:48:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-12-19 04:48:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3330 transitions. [2019-12-19 04:48:05,618 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3330 transitions. Word has length 38 [2019-12-19 04:48:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:05,619 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 3330 transitions. [2019-12-19 04:48:05,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:48:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3330 transitions. [2019-12-19 04:48:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:05,622 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:05,622 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:05,623 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:05,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1325953903, now seen corresponding path program 3 times [2019-12-19 04:48:05,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:05,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290049763] [2019-12-19 04:48:05,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:05,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290049763] [2019-12-19 04:48:05,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:05,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:48:05,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62895563] [2019-12-19 04:48:05,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:48:05,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:05,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:48:05,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:05,843 INFO L87 Difference]: Start difference. First operand 1015 states and 3330 transitions. Second operand 7 states. [2019-12-19 04:48:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:05,948 INFO L93 Difference]: Finished difference Result 1537 states and 5133 transitions. [2019-12-19 04:48:05,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:48:05,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-19 04:48:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:05,956 INFO L225 Difference]: With dead ends: 1537 [2019-12-19 04:48:05,956 INFO L226 Difference]: Without dead ends: 1003 [2019-12-19 04:48:05,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 04:48:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-12-19 04:48:05,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2019-12-19 04:48:05,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-12-19 04:48:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 3300 transitions. [2019-12-19 04:48:05,985 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 3300 transitions. Word has length 38 [2019-12-19 04:48:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:05,986 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 3300 transitions. [2019-12-19 04:48:05,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:48:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 3300 transitions. [2019-12-19 04:48:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:48:05,989 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:48:05,989 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:48:05,989 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:48:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:48:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1055873953, now seen corresponding path program 4 times [2019-12-19 04:48:05,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:48:05,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20274162] [2019-12-19 04:48:05,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:48:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:48:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:48:06,079 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20274162] [2019-12-19 04:48:06,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:48:06,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:48:06,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559616157] [2019-12-19 04:48:06,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:48:06,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:48:06,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:48:06,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:48:06,081 INFO L87 Difference]: Start difference. First operand 1003 states and 3300 transitions. Second operand 7 states. [2019-12-19 04:48:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:48:06,177 INFO L93 Difference]: Finished difference Result 841 states and 2706 transitions. [2019-12-19 04:48:06,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:48:06,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-19 04:48:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:48:06,178 INFO L225 Difference]: With dead ends: 841 [2019-12-19 04:48:06,178 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:48:06,179 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:48:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:48:06,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:48:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:48:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:48:06,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-12-19 04:48:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:48:06,180 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:48:06,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:48:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:48:06,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:48:06,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:48:06 BasicIcfg [2019-12-19 04:48:06,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:48:06,189 INFO L168 Benchmark]: Toolchain (without parser) took 5350.92 ms. Allocated memory was 143.1 MB in the beginning and 321.9 MB in the end (delta: 178.8 MB). Free memory was 99.2 MB in the beginning and 190.9 MB in the end (delta: -91.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,190 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.02 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 157.1 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 200.8 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,192 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,193 INFO L168 Benchmark]: RCFGBuilder took 481.26 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 131.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,194 INFO L168 Benchmark]: TraceAbstraction took 4107.79 ms. Allocated memory was 200.8 MB in the beginning and 321.9 MB in the end (delta: 121.1 MB). Free memory was 131.1 MB in the beginning and 190.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:48:06,198 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.02 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 157.1 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 200.8 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 481.26 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 131.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4107.79 ms. Allocated memory was 200.8 MB in the beginning and 321.9 MB in the end (delta: 121.1 MB). Free memory was 131.1 MB in the beginning and 190.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 5 procedures, 63 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 472 SDtfs, 786 SDslu, 1322 SDs, 0 SdLazy, 180 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5471occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 29326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...