/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:04:00,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:04:00,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:04:00,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:04:00,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:04:00,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:04:00,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:04:00,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:04:00,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:04:00,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:04:00,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:04:00,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:04:00,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:04:00,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:04:00,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:04:00,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:04:00,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:04:00,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:04:00,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:04:00,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:04:00,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:04:00,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:04:00,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:04:00,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:04:00,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:04:00,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:04:00,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:04:00,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:04:00,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:04:00,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:04:00,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:04:00,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:04:00,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:04:00,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:04:00,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:04:00,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:04:00,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:04:00,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:04:00,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:04:00,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:04:00,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:04:00,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 04:04:00,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:04:00,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:04:00,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:04:00,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:04:00,275 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:04:00,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:04:00,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:04:00,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:04:00,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:04:00,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:04:00,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:04:00,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:04:00,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:04:00,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:04:00,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:04:00,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:04:00,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:04:00,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:04:00,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:04:00,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:04:00,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:04:00,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:04:00,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:04:00,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:04:00,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:04:00,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:04:00,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:04:00,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:04:00,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:04:00,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:04:00,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:04:00,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:04:00,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:04:00,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:04:00,636 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:04:00,637 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 04:04:00,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1f122358/ec56a6da332046ac9dbf41e04c41008b/FLAG10835083b [2020-10-15 04:04:01,253 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:04:01,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 04:04:01,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1f122358/ec56a6da332046ac9dbf41e04c41008b/FLAG10835083b [2020-10-15 04:04:01,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1f122358/ec56a6da332046ac9dbf41e04c41008b [2020-10-15 04:04:01,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:04:01,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:04:01,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:04:01,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:04:01,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:04:01,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:04:01" (1/1) ... [2020-10-15 04:04:01,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243026c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:01, skipping insertion in model container [2020-10-15 04:04:01,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:04:01" (1/1) ... [2020-10-15 04:04:01,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:04:01,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:04:02,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:04:02,308 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:04:02,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:04:02,550 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:04:02,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02 WrapperNode [2020-10-15 04:04:02,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:04:02,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:04:02,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:04:02,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:04:02,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... [2020-10-15 04:04:02,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:04:02,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:04:02,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:04:02,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:04:02,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-15 04:04:02,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:04:02,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:04:02,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 04:04:02,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:04:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:04:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:04:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 04:04:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 04:04:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 04:04:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 04:04:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 04:04:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 04:04:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 04:04:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 04:04:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 04:04:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 04:04:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 04:04:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:04:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:04:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:04:04,549 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:04:04,550 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 04:04:04,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:04:04 BoogieIcfgContainer [2020-10-15 04:04:04,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:04:04,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:04:04,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:04:04,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:04:04,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:04:01" (1/3) ... [2020-10-15 04:04:04,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b472eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:04:04, skipping insertion in model container [2020-10-15 04:04:04,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:04:02" (2/3) ... [2020-10-15 04:04:04,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b472eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:04:04, skipping insertion in model container [2020-10-15 04:04:04,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:04:04" (3/3) ... [2020-10-15 04:04:04,566 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-10-15 04:04:04,578 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:04:04,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-15 04:04:04,603 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 04:04:04,631 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:04:04,631 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:04:04,632 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:04:04,632 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:04:04,632 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:04:04,632 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:04:04,632 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:04:04,632 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:04:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states. [2020-10-15 04:04:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-15 04:04:04,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:04,681 INFO L422 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, 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, 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, 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] [2020-10-15 04:04:04,681 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:04,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:04,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1613324975, now seen corresponding path program 1 times [2020-10-15 04:04:04,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:04,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385278309] [2020-10-15 04:04:04,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:05,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:05,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:05,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:06,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:07,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:10,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:10,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-15 04:04:10,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 04:04:10,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-15 04:04:10,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:10,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:04:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 04:04:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 04:04:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-15 04:04:10,907 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:10,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:10,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:10,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:10,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 04:04:10,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:10,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:10,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:10,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385278309] [2020-10-15 04:04:10,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:10,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:04:10,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139773378] [2020-10-15 04:04:11,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:04:11,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:11,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:04:11,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:04:11,023 INFO L87 Difference]: Start difference. First operand 405 states. Second operand 4 states. [2020-10-15 04:04:11,382 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 04:04:14,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:14,341 INFO L93 Difference]: Finished difference Result 734 states and 1290 transitions. [2020-10-15 04:04:14,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:14,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-15 04:04:14,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:14,363 INFO L225 Difference]: With dead ends: 734 [2020-10-15 04:04:14,363 INFO L226 Difference]: Without dead ends: 573 [2020-10-15 04:04:14,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:14,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-10-15 04:04:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 571. [2020-10-15 04:04:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-15 04:04:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 834 transitions. [2020-10-15 04:04:14,455 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 834 transitions. Word has length 149 [2020-10-15 04:04:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:14,456 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 834 transitions. [2020-10-15 04:04:14,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:04:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 834 transitions. [2020-10-15 04:04:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-15 04:04:14,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:14,461 INFO L422 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, 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, 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, 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] [2020-10-15 04:04:14,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:04:14,462 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:14,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:14,463 INFO L82 PathProgramCache]: Analyzing trace with hash -361205777, now seen corresponding path program 1 times [2020-10-15 04:04:14,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:14,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659065829] [2020-10-15 04:04:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:14,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:14,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:15,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:16,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:17,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:19,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-15 04:04:19,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 04:04:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 04:04:19,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:19,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:04:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-15 04:04:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 04:04:19,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:04:19,869 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:19,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:19,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:19,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:19,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 04:04:19,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:19,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:19,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:19,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:19,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659065829] [2020-10-15 04:04:19,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:19,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:04:19,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788672916] [2020-10-15 04:04:19,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:04:19,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:19,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:04:19,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:04:19,937 INFO L87 Difference]: Start difference. First operand 571 states and 834 transitions. Second operand 4 states. [2020-10-15 04:04:20,217 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-15 04:04:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:22,364 INFO L93 Difference]: Finished difference Result 1146 states and 1731 transitions. [2020-10-15 04:04:22,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:22,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-15 04:04:22,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:22,374 INFO L225 Difference]: With dead ends: 1146 [2020-10-15 04:04:22,374 INFO L226 Difference]: Without dead ends: 933 [2020-10-15 04:04:22,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-10-15 04:04:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 931. [2020-10-15 04:04:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-10-15 04:04:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1384 transitions. [2020-10-15 04:04:22,433 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1384 transitions. Word has length 149 [2020-10-15 04:04:22,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:22,435 INFO L479 AbstractCegarLoop]: Abstraction has 931 states and 1384 transitions. [2020-10-15 04:04:22,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:04:22,435 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1384 transitions. [2020-10-15 04:04:22,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-15 04:04:22,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:22,444 INFO L422 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, 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, 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, 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] [2020-10-15 04:04:22,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:04:22,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:22,445 INFO L82 PathProgramCache]: Analyzing trace with hash -361544401, now seen corresponding path program 1 times [2020-10-15 04:04:22,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:22,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324594520] [2020-10-15 04:04:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:22,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:22,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:23,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:23,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:23,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:23,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:24,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:25,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:27,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:27,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-15 04:04:27,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 04:04:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 04:04:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:27,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:04:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:04:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 04:04:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:27,968 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:27,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:27,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:27,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:27,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:27,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:27,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 04:04:27,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:27,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:27,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:28,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324594520] [2020-10-15 04:04:28,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:28,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:04:28,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619377617] [2020-10-15 04:04:28,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:04:28,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:28,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:04:28,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:28,108 INFO L87 Difference]: Start difference. First operand 931 states and 1384 transitions. Second operand 5 states. [2020-10-15 04:04:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:31,323 INFO L93 Difference]: Finished difference Result 2699 states and 3997 transitions. [2020-10-15 04:04:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:31,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-10-15 04:04:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:31,336 INFO L225 Difference]: With dead ends: 2699 [2020-10-15 04:04:31,337 INFO L226 Difference]: Without dead ends: 1785 [2020-10-15 04:04:31,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:04:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2020-10-15 04:04:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1755. [2020-10-15 04:04:31,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1755 states. [2020-10-15 04:04:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2586 transitions. [2020-10-15 04:04:31,414 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2586 transitions. Word has length 149 [2020-10-15 04:04:31,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:31,415 INFO L479 AbstractCegarLoop]: Abstraction has 1755 states and 2586 transitions. [2020-10-15 04:04:31,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:04:31,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2586 transitions. [2020-10-15 04:04:31,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 04:04:31,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:31,419 INFO L422 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, 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, 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, 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] [2020-10-15 04:04:31,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:04:31,422 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:31,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:31,423 INFO L82 PathProgramCache]: Analyzing trace with hash 587494490, now seen corresponding path program 1 times [2020-10-15 04:04:31,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:31,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534056752] [2020-10-15 04:04:31,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:31,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:31,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:31,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:31,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:31,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:32,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:32,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:32,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:33,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:36,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-15 04:04:36,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 04:04:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 04:04:36,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:36,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:04:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:04:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 04:04:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:36,791 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:36,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:36,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:36,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:36,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 04:04:36,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:36,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:36,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534056752] [2020-10-15 04:04:36,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:36,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:04:36,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95944183] [2020-10-15 04:04:36,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:04:36,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:36,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:04:36,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:36,866 INFO L87 Difference]: Start difference. First operand 1755 states and 2586 transitions. Second operand 5 states. [2020-10-15 04:04:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:39,721 INFO L93 Difference]: Finished difference Result 4814 states and 7066 transitions. [2020-10-15 04:04:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:39,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-15 04:04:39,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:39,743 INFO L225 Difference]: With dead ends: 4814 [2020-10-15 04:04:39,744 INFO L226 Difference]: Without dead ends: 3070 [2020-10-15 04:04:39,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:04:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2020-10-15 04:04:39,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 3035. [2020-10-15 04:04:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3035 states. [2020-10-15 04:04:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4421 transitions. [2020-10-15 04:04:39,932 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4421 transitions. Word has length 150 [2020-10-15 04:04:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:39,933 INFO L479 AbstractCegarLoop]: Abstraction has 3035 states and 4421 transitions. [2020-10-15 04:04:39,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:04:39,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4421 transitions. [2020-10-15 04:04:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-15 04:04:39,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:39,938 INFO L422 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, 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, 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, 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] [2020-10-15 04:04:39,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:04:39,939 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:39,939 INFO L82 PathProgramCache]: Analyzing trace with hash -673113651, now seen corresponding path program 1 times [2020-10-15 04:04:39,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:39,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672572059] [2020-10-15 04:04:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:39,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:40,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:41,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:44,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:44,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:44,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:44,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-15 04:04:44,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 04:04:44,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 04:04:44,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:44,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:04:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:04:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 04:04:44,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:45,451 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:45,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:45,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:45,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:45,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:45,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:45,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 04:04:45,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:45,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:45,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672572059] [2020-10-15 04:04:45,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:45,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:04:45,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446020929] [2020-10-15 04:04:45,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:04:45,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:45,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:04:45,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:45,581 INFO L87 Difference]: Start difference. First operand 3035 states and 4421 transitions. Second operand 5 states. [2020-10-15 04:04:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:48,999 INFO L93 Difference]: Finished difference Result 8529 states and 12421 transitions. [2020-10-15 04:04:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:49,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-15 04:04:49,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:49,031 INFO L225 Difference]: With dead ends: 8529 [2020-10-15 04:04:49,031 INFO L226 Difference]: Without dead ends: 5828 [2020-10-15 04:04:49,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:04:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2020-10-15 04:04:49,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5774. [2020-10-15 04:04:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5774 states. [2020-10-15 04:04:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 8311 transitions. [2020-10-15 04:04:49,428 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 8311 transitions. Word has length 151 [2020-10-15 04:04:49,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:49,429 INFO L479 AbstractCegarLoop]: Abstraction has 5774 states and 8311 transitions. [2020-10-15 04:04:49,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:04:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 8311 transitions. [2020-10-15 04:04:49,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 04:04:49,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:49,438 INFO L422 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, 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, 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, 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] [2020-10-15 04:04:49,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:04:49,439 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:49,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1210221413, now seen corresponding path program 1 times [2020-10-15 04:04:49,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:49,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340038244] [2020-10-15 04:04:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:49,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:49,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:49,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:49,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:49,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:49,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:50,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:52,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:52,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:52,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:54,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:54,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-15 04:04:54,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 04:04:54,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 04:04:54,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:54,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:04:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:04:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-15 04:04:54,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:04:54,877 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:04:54,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:04:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:54,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:54,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:04:54,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:04:54,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:04:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:04:54,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:04:54,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:04:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:04:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:04:54,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:04:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:04:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:04:55,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340038244] [2020-10-15 04:04:55,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:04:55,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:04:55,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592215984] [2020-10-15 04:04:55,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:04:55,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:04:55,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:04:55,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:04:55,013 INFO L87 Difference]: Start difference. First operand 5774 states and 8311 transitions. Second operand 5 states. [2020-10-15 04:04:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:04:57,781 INFO L93 Difference]: Finished difference Result 15593 states and 22315 transitions. [2020-10-15 04:04:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:04:57,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-15 04:04:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:04:57,821 INFO L225 Difference]: With dead ends: 15593 [2020-10-15 04:04:57,822 INFO L226 Difference]: Without dead ends: 9883 [2020-10-15 04:04:57,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:04:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9883 states. [2020-10-15 04:04:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9883 to 9829. [2020-10-15 04:04:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9829 states. [2020-10-15 04:04:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 13907 transitions. [2020-10-15 04:04:58,310 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 13907 transitions. Word has length 152 [2020-10-15 04:04:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:04:58,310 INFO L479 AbstractCegarLoop]: Abstraction has 9829 states and 13907 transitions. [2020-10-15 04:04:58,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:04:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 13907 transitions. [2020-10-15 04:04:58,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 04:04:58,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:04:58,324 INFO L422 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, 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, 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, 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, 1] [2020-10-15 04:04:58,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:04:58,325 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:04:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:04:58,325 INFO L82 PathProgramCache]: Analyzing trace with hash -759666899, now seen corresponding path program 1 times [2020-10-15 04:04:58,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:04:58,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071302143] [2020-10-15 04:04:58,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:04:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:04:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:04:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:00,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:00,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:03,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:03,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-15 04:05:03,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 04:05:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 04:05:03,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:03,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:05:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:05:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 04:05:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:03,701 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:05:03,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:05:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:03,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:03,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:03,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:05:03,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:05:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 04:05:03,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:03,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:05:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:05:03,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:05:03,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:05:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:05:03,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071302143] [2020-10-15 04:05:03,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:05:03,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:05:03,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972139466] [2020-10-15 04:05:03,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:05:03,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:05:03,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:05:03,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:05:03,781 INFO L87 Difference]: Start difference. First operand 9829 states and 13907 transitions. Second operand 5 states. [2020-10-15 04:05:07,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:05:07,565 INFO L93 Difference]: Finished difference Result 27515 states and 38909 transitions. [2020-10-15 04:05:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:05:07,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-15 04:05:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:05:07,617 INFO L225 Difference]: With dead ends: 27515 [2020-10-15 04:05:07,617 INFO L226 Difference]: Without dead ends: 18904 [2020-10-15 04:05:07,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:05:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18904 states. [2020-10-15 04:05:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18904 to 18850. [2020-10-15 04:05:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18850 states. [2020-10-15 04:05:08,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18850 states to 18850 states and 26263 transitions. [2020-10-15 04:05:08,701 INFO L78 Accepts]: Start accepts. Automaton has 18850 states and 26263 transitions. Word has length 153 [2020-10-15 04:05:08,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:05:08,701 INFO L479 AbstractCegarLoop]: Abstraction has 18850 states and 26263 transitions. [2020-10-15 04:05:08,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:05:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 18850 states and 26263 transitions. [2020-10-15 04:05:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-15 04:05:08,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:05:08,736 INFO L422 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, 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, 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, 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, 1, 1] [2020-10-15 04:05:08,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:05:08,736 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:05:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:05:08,737 INFO L82 PathProgramCache]: Analyzing trace with hash 842682394, now seen corresponding path program 1 times [2020-10-15 04:05:08,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:05:08,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307656984] [2020-10-15 04:05:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:05:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:08,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:08,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:08,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:08,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:08,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:13,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:13,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-15 04:05:13,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:05:13,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:05:13,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:13,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:13,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:05:13,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:05:13,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 04:05:13,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:14,105 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:05:14,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:05:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:14,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:14,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:14,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:05:14,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:05:14,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:05:14,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:14,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:05:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:05:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:05:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:05:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:05:14,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307656984] [2020-10-15 04:05:14,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:05:14,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:05:14,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285914748] [2020-10-15 04:05:14,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:05:14,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:05:14,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:05:14,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:05:14,164 INFO L87 Difference]: Start difference. First operand 18850 states and 26263 transitions. Second operand 5 states. [2020-10-15 04:05:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:05:18,716 INFO L93 Difference]: Finished difference Result 54721 states and 76099 transitions. [2020-10-15 04:05:18,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:05:18,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-15 04:05:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:05:18,795 INFO L225 Difference]: With dead ends: 54721 [2020-10-15 04:05:18,795 INFO L226 Difference]: Without dead ends: 36755 [2020-10-15 04:05:18,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:05:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36755 states. [2020-10-15 04:05:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36755 to 36701. [2020-10-15 04:05:21,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36701 states. [2020-10-15 04:05:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36701 states to 36701 states and 50467 transitions. [2020-10-15 04:05:21,340 INFO L78 Accepts]: Start accepts. Automaton has 36701 states and 50467 transitions. Word has length 154 [2020-10-15 04:05:21,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:05:21,341 INFO L479 AbstractCegarLoop]: Abstraction has 36701 states and 50467 transitions. [2020-10-15 04:05:21,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:05:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 36701 states and 50467 transitions. [2020-10-15 04:05:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-15 04:05:21,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:05:21,377 INFO L422 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, 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, 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, 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, 1, 1, 1] [2020-10-15 04:05:21,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:05:21,377 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:05:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:05:21,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1923257996, now seen corresponding path program 1 times [2020-10-15 04:05:21,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:05:21,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257097175] [2020-10-15 04:05:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:05:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:21,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:21,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:21,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:21,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:26,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:26,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 04:05:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:26,708 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:05:26,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:05:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:26,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:26,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:26,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:05:26,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:05:26,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:05:26,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:26,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:26,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:05:26,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:05:26,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:05:26,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:05:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:05:26,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257097175] [2020-10-15 04:05:26,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:05:26,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:05:26,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019901115] [2020-10-15 04:05:26,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:05:26,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:05:26,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:05:26,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:05:26,747 INFO L87 Difference]: Start difference. First operand 36701 states and 50467 transitions. Second operand 5 states. [2020-10-15 04:05:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:05:29,408 INFO L93 Difference]: Finished difference Result 62033 states and 85654 transitions. [2020-10-15 04:05:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:05:29,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-15 04:05:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:05:29,457 INFO L225 Difference]: With dead ends: 62033 [2020-10-15 04:05:29,458 INFO L226 Difference]: Without dead ends: 26481 [2020-10-15 04:05:29,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:05:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26481 states. [2020-10-15 04:05:30,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26481 to 26480. [2020-10-15 04:05:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26480 states. [2020-10-15 04:05:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26480 states to 26480 states and 36493 transitions. [2020-10-15 04:05:30,880 INFO L78 Accepts]: Start accepts. Automaton has 26480 states and 36493 transitions. Word has length 155 [2020-10-15 04:05:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:05:30,880 INFO L479 AbstractCegarLoop]: Abstraction has 26480 states and 36493 transitions. [2020-10-15 04:05:30,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:05:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 26480 states and 36493 transitions. [2020-10-15 04:05:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 04:05:30,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:05:30,906 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1] [2020-10-15 04:05:30,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 04:05:30,906 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:05:30,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:05:30,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1392068689, now seen corresponding path program 1 times [2020-10-15 04:05:30,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:05:30,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223273203] [2020-10-15 04:05:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:05:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:30,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:30,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:30,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:31,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:31,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:31,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:31,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:31,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:33,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:35,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:35,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 04:05:35,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 04:05:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 04:05:35,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:35,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:05:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:05:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 04:05:35,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:36,249 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:05:36,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:05:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:36,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:36,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:36,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:05:36,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:05:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 04:05:36,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:36,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:36,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:05:36,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:05:36,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:05:36,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:05:36,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223273203] [2020-10-15 04:05:36,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:05:36,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:05:36,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42852323] [2020-10-15 04:05:36,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:05:36,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:05:36,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:05:36,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:05:36,299 INFO L87 Difference]: Start difference. First operand 26480 states and 36493 transitions. Second operand 5 states. [2020-10-15 04:05:36,582 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 04:05:41,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:05:41,083 INFO L93 Difference]: Finished difference Result 47247 states and 65189 transitions. [2020-10-15 04:05:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 04:05:41,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-15 04:05:41,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:05:41,122 INFO L225 Difference]: With dead ends: 47247 [2020-10-15 04:05:41,122 INFO L226 Difference]: Without dead ends: 26514 [2020-10-15 04:05:41,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 04:05:41,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26514 states. [2020-10-15 04:05:42,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26514 to 26480. [2020-10-15 04:05:42,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26480 states. [2020-10-15 04:05:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26480 states to 26480 states and 36372 transitions. [2020-10-15 04:05:42,692 INFO L78 Accepts]: Start accepts. Automaton has 26480 states and 36372 transitions. Word has length 157 [2020-10-15 04:05:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:05:42,692 INFO L479 AbstractCegarLoop]: Abstraction has 26480 states and 36372 transitions. [2020-10-15 04:05:42,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:05:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 26480 states and 36372 transitions. [2020-10-15 04:05:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 04:05:42,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:05:42,707 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2020-10-15 04:05:42,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 04:05:42,707 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:05:42,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:05:42,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1893315433, now seen corresponding path program 1 times [2020-10-15 04:05:42,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:05:42,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636999907] [2020-10-15 04:05:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:05:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:42,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:42,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:42,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:42,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:43,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:43,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:47,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:47,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-15 04:05:47,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:05:47,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 04:05:47,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:47,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:05:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:05:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-15 04:05:47,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:48,087 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:05:48,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:05:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:48,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:05:48,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:05:48,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:05:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 04:05:48,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:05:48,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:05:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:05:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:05:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:05:48,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:05:48,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:05:48,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636999907] [2020-10-15 04:05:48,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:05:48,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:05:48,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388599648] [2020-10-15 04:05:48,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:05:48,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:05:48,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:05:48,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:05:48,169 INFO L87 Difference]: Start difference. First operand 26480 states and 36372 transitions. Second operand 9 states. [2020-10-15 04:05:48,492 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 04:05:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:05:56,387 INFO L93 Difference]: Finished difference Result 92119 states and 133456 transitions. [2020-10-15 04:05:56,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 04:05:56,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-15 04:05:56,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:05:56,506 INFO L225 Difference]: With dead ends: 92119 [2020-10-15 04:05:56,506 INFO L226 Difference]: Without dead ends: 70352 [2020-10-15 04:05:56,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-15 04:05:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70352 states. [2020-10-15 04:05:59,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70352 to 41808. [2020-10-15 04:05:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41808 states. [2020-10-15 04:05:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41808 states to 41808 states and 58828 transitions. [2020-10-15 04:05:59,170 INFO L78 Accepts]: Start accepts. Automaton has 41808 states and 58828 transitions. Word has length 158 [2020-10-15 04:05:59,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:05:59,171 INFO L479 AbstractCegarLoop]: Abstraction has 41808 states and 58828 transitions. [2020-10-15 04:05:59,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 04:05:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand 41808 states and 58828 transitions. [2020-10-15 04:05:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 04:05:59,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:05:59,184 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2020-10-15 04:05:59,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 04:05:59,185 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:05:59,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:05:59,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1966704578, now seen corresponding path program 1 times [2020-10-15 04:05:59,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:05:59,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25610964] [2020-10-15 04:05:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:05:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:05:59,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:59,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:59,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:59,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:05:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:04,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:04,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-15 04:06:04,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:06:04,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 04:06:04,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:04,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:06:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 04:06:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 04:06:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:04,506 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:06:04,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:06:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:04,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:04,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:04,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:06:04,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:06:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:06:04,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:04,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:06:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:06:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:06:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:06:04,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25610964] [2020-10-15 04:06:04,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:06:04,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:06:04,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213667893] [2020-10-15 04:06:04,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:06:04,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:06:04,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:06:04,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:06:04,549 INFO L87 Difference]: Start difference. First operand 41808 states and 58828 transitions. Second operand 5 states. [2020-10-15 04:06:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:06:08,392 INFO L93 Difference]: Finished difference Result 74656 states and 104935 transitions. [2020-10-15 04:06:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:06:08,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-15 04:06:08,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:06:08,430 INFO L225 Difference]: With dead ends: 74656 [2020-10-15 04:06:08,430 INFO L226 Difference]: Without dead ends: 33270 [2020-10-15 04:06:08,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:06:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33270 states. [2020-10-15 04:06:11,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33270 to 33270. [2020-10-15 04:06:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33270 states. [2020-10-15 04:06:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33270 states to 33270 states and 46598 transitions. [2020-10-15 04:06:11,623 INFO L78 Accepts]: Start accepts. Automaton has 33270 states and 46598 transitions. Word has length 158 [2020-10-15 04:06:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:06:11,623 INFO L479 AbstractCegarLoop]: Abstraction has 33270 states and 46598 transitions. [2020-10-15 04:06:11,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:06:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 33270 states and 46598 transitions. [2020-10-15 04:06:11,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-15 04:06:11,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:06:11,637 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:06:11,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 04:06:11,638 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:06:11,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:06:11,638 INFO L82 PathProgramCache]: Analyzing trace with hash 811564813, now seen corresponding path program 1 times [2020-10-15 04:06:11,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:06:11,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656440017] [2020-10-15 04:06:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:06:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:11,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:11,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:11,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:11,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:11,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:11,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:16,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:16,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-15 04:06:16,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 04:06:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:16,982 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:06:16,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:06:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:16,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:16,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:16,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:06:16,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:06:16,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 04:06:16,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:16,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:16,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:06:16,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:06:16,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:06:16,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:06:17,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656440017] [2020-10-15 04:06:17,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:06:17,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:06:17,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129443520] [2020-10-15 04:06:17,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:06:17,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:06:17,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:06:17,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:06:17,025 INFO L87 Difference]: Start difference. First operand 33270 states and 46598 transitions. Second operand 5 states. [2020-10-15 04:06:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:06:20,351 INFO L93 Difference]: Finished difference Result 58523 states and 81930 transitions. [2020-10-15 04:06:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:06:20,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-10-15 04:06:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:06:20,379 INFO L225 Difference]: With dead ends: 58523 [2020-10-15 04:06:20,379 INFO L226 Difference]: Without dead ends: 25445 [2020-10-15 04:06:20,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:06:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25445 states. [2020-10-15 04:06:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25445 to 25435. [2020-10-15 04:06:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25435 states. [2020-10-15 04:06:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25435 states to 25435 states and 35570 transitions. [2020-10-15 04:06:21,905 INFO L78 Accepts]: Start accepts. Automaton has 25435 states and 35570 transitions. Word has length 159 [2020-10-15 04:06:21,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:06:21,905 INFO L479 AbstractCegarLoop]: Abstraction has 25435 states and 35570 transitions. [2020-10-15 04:06:21,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:06:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 25435 states and 35570 transitions. [2020-10-15 04:06:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-15 04:06:21,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:06:21,917 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:06:21,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 04:06:21,917 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:06:21,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:06:21,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1744573368, now seen corresponding path program 1 times [2020-10-15 04:06:21,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:06:21,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000932128] [2020-10-15 04:06:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:06:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:21,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:26,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:26,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-15 04:06:26,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 04:06:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 04:06:26,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:26,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:06:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:06:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 04:06:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:27,257 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:06:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:06:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:27,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:27,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:27,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:06:27,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:06:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:27,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:06:27,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000932128] [2020-10-15 04:06:27,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:06:27,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:06:27,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548419705] [2020-10-15 04:06:27,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:06:27,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:06:27,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:06:27,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:06:27,314 INFO L87 Difference]: Start difference. First operand 25435 states and 35570 transitions. Second operand 5 states. [2020-10-15 04:06:27,688 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-15 04:06:32,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:06:32,486 INFO L93 Difference]: Finished difference Result 45258 states and 63120 transitions. [2020-10-15 04:06:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 04:06:32,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-10-15 04:06:32,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:06:32,528 INFO L225 Difference]: With dead ends: 45258 [2020-10-15 04:06:32,528 INFO L226 Difference]: Without dead ends: 25476 [2020-10-15 04:06:32,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 04:06:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25476 states. [2020-10-15 04:06:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25476 to 25424. [2020-10-15 04:06:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25424 states. [2020-10-15 04:06:34,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25424 states to 25424 states and 35397 transitions. [2020-10-15 04:06:34,221 INFO L78 Accepts]: Start accepts. Automaton has 25424 states and 35397 transitions. Word has length 162 [2020-10-15 04:06:34,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:06:34,222 INFO L479 AbstractCegarLoop]: Abstraction has 25424 states and 35397 transitions. [2020-10-15 04:06:34,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:06:34,222 INFO L276 IsEmpty]: Start isEmpty. Operand 25424 states and 35397 transitions. [2020-10-15 04:06:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-15 04:06:34,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:06:34,231 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:06:34,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 04:06:34,232 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:06:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:06:34,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1023157448, now seen corresponding path program 1 times [2020-10-15 04:06:34,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:06:34,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379112925] [2020-10-15 04:06:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:06:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:34,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:34,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:34,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:34,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:35,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:35,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:35,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:39,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:06:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 04:06:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:39,622 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:06:39,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:06:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:39,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:39,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:06:39,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:06:39,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:06:39,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:39,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:06:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:06:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:06:39,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:06:39,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379112925] [2020-10-15 04:06:39,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:06:39,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:06:39,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394007245] [2020-10-15 04:06:39,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:06:39,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:06:39,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:06:39,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:06:39,732 INFO L87 Difference]: Start difference. First operand 25424 states and 35397 transitions. Second operand 9 states. [2020-10-15 04:06:40,042 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 04:06:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:06:48,100 INFO L93 Difference]: Finished difference Result 91511 states and 130410 transitions. [2020-10-15 04:06:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 04:06:48,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-10-15 04:06:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:06:48,182 INFO L225 Difference]: With dead ends: 91511 [2020-10-15 04:06:48,182 INFO L226 Difference]: Without dead ends: 67255 [2020-10-15 04:06:48,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-15 04:06:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67255 states. [2020-10-15 04:06:50,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67255 to 30232. [2020-10-15 04:06:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30232 states. [2020-10-15 04:06:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30232 states to 30232 states and 41848 transitions. [2020-10-15 04:06:50,657 INFO L78 Accepts]: Start accepts. Automaton has 30232 states and 41848 transitions. Word has length 163 [2020-10-15 04:06:50,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:06:50,657 INFO L479 AbstractCegarLoop]: Abstraction has 30232 states and 41848 transitions. [2020-10-15 04:06:50,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 04:06:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 30232 states and 41848 transitions. [2020-10-15 04:06:50,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-15 04:06:50,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:06:50,667 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:06:50,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 04:06:50,667 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:06:50,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:06:50,668 INFO L82 PathProgramCache]: Analyzing trace with hash -884268573, now seen corresponding path program 1 times [2020-10-15 04:06:50,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:06:50,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765730274] [2020-10-15 04:06:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:06:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:50,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:50,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:50,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:51,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:53,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:54,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:54,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:55,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:55,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-15 04:06:55,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 04:06:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 04:06:55,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:55,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:06:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:06:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-15 04:06:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:56,054 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:06:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:06:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:06:56,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:06:56,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:06:56,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:06:56,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:06:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 04:06:56,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:06:56,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:06:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:06:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:06:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:06:56,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:06:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:06:56,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765730274] [2020-10-15 04:06:56,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:06:56,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:06:56,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285892740] [2020-10-15 04:06:56,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:06:56,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:06:56,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:06:56,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:06:56,122 INFO L87 Difference]: Start difference. First operand 30232 states and 41848 transitions. Second operand 9 states. [2020-10-15 04:06:56,422 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-15 04:07:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:07:17,189 INFO L93 Difference]: Finished difference Result 191684 states and 275289 transitions. [2020-10-15 04:07:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 04:07:17,189 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-10-15 04:07:17,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:07:17,427 INFO L225 Difference]: With dead ends: 191684 [2020-10-15 04:07:17,428 INFO L226 Difference]: Without dead ends: 174691 [2020-10-15 04:07:17,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-10-15 04:07:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174691 states. [2020-10-15 04:07:26,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174691 to 89074. [2020-10-15 04:07:26,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89074 states. [2020-10-15 04:07:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89074 states to 89074 states and 125837 transitions. [2020-10-15 04:07:26,170 INFO L78 Accepts]: Start accepts. Automaton has 89074 states and 125837 transitions. Word has length 163 [2020-10-15 04:07:26,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:07:26,170 INFO L479 AbstractCegarLoop]: Abstraction has 89074 states and 125837 transitions. [2020-10-15 04:07:26,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 04:07:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 89074 states and 125837 transitions. [2020-10-15 04:07:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-15 04:07:26,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:07:26,191 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:07:26,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 04:07:26,192 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:07:26,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:07:26,192 INFO L82 PathProgramCache]: Analyzing trace with hash -664020293, now seen corresponding path program 1 times [2020-10-15 04:07:26,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:07:26,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713470031] [2020-10-15 04:07:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:07:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:07:26,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:26,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:26,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:27,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:28,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:28,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:31,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:07:31,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-15 04:07:31,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-15 04:07:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:07:31,556 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 04:07:31,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:07:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:07:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:07:31,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:07:31,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:07:31,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:07:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:07:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:07:31,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713470031] [2020-10-15 04:07:31,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:07:31,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 04:07:31,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977945005] [2020-10-15 04:07:31,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 04:07:31,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:07:31,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 04:07:31,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:07:31,643 INFO L87 Difference]: Start difference. First operand 89074 states and 125837 transitions. Second operand 9 states. [2020-10-15 04:07:31,940 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-15 04:07:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:07:43,259 INFO L93 Difference]: Finished difference Result 170701 states and 243185 transitions. [2020-10-15 04:07:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 04:07:43,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-10-15 04:07:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:07:43,370 INFO L225 Difference]: With dead ends: 170701 [2020-10-15 04:07:43,370 INFO L226 Difference]: Without dead ends: 86585 [2020-10-15 04:07:43,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-15 04:07:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86585 states.