/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_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:27:12,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:27:12,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:27:12,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:27:12,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:27:12,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:27:12,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:27:12,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:27:12,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:27:12,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:27:12,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:27:12,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:27:12,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:27:12,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:27:12,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:27:12,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:27:12,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:27:12,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:27:12,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:27:12,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:27:12,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:27:12,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:27:12,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:27:12,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:27:12,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:27:12,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:27:12,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:27:12,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:27:12,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:27:12,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:27:12,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:27:12,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:27:12,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:27:12,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:27:12,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:27:12,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:27:12,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:27:12,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:27:12,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:27:12,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:27:12,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:27:12,461 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 03:27:12,483 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:27:12,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:27:12,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:27:12,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:27:12,485 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:27:12,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:27:12,486 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:27:12,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:27:12,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:27:12,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:27:12,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:27:12,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:27:12,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:27:12,487 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:27:12,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:27:12,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:27:12,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:27:12,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:27:12,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:27:12,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:27:12,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:27:12,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:27:12,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:27:12,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:27:12,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:27:12,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:27:12,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:27:12,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:27:12,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:27:12,493 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 03:27:12,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:27:12,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:27:12,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:27:12,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:27:12,817 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:27:12,818 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-15 03:27:12,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95eff77d3/ee092ef3d4a34e4fa7be636aef9c9dab/FLAG1b80cf669 [2020-10-15 03:27:13,653 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:27:13,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-15 03:27:13,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95eff77d3/ee092ef3d4a34e4fa7be636aef9c9dab/FLAG1b80cf669 [2020-10-15 03:27:14,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95eff77d3/ee092ef3d4a34e4fa7be636aef9c9dab [2020-10-15 03:27:14,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:27:14,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:27:14,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:27:14,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:27:14,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:27:14,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:27:14" (1/1) ... [2020-10-15 03:27:14,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a9d3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:14, skipping insertion in model container [2020-10-15 03:27:14,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:27:14" (1/1) ... [2020-10-15 03:27:14,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:27:14,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:27:15,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:27:15,723 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:27:16,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:27:16,426 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:27:16,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16 WrapperNode [2020-10-15 03:27:16,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:27:16,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:27:16,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:27:16,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:27:16,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (1/1) ... [2020-10-15 03:27:16,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:27:16,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:27:16,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:27:16,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:27:16,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (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 03:27:16,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:27:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:27:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:27:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:27:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:27:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:27:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:27:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:27:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:27:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:27:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:27:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:27:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:27:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:27:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:27:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:27:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:27:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-15 03:27:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:27:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:27:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:27:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:27:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:27:20,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:27:20,061 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:27:20,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:27:20 BoogieIcfgContainer [2020-10-15 03:27:20,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:27:20,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:27:20,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:27:20,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:27:20,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:27:14" (1/3) ... [2020-10-15 03:27:20,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536eafe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:27:20, skipping insertion in model container [2020-10-15 03:27:20,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:27:16" (2/3) ... [2020-10-15 03:27:20,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536eafe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:27:20, skipping insertion in model container [2020-10-15 03:27:20,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:27:20" (3/3) ... [2020-10-15 03:27:20,080 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-15 03:27:20,093 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:27:20,102 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-15 03:27:20,117 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-15 03:27:20,148 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:27:20,149 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:27:20,149 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:27:20,149 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:27:20,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:27:20,149 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:27:20,149 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:27:20,150 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:27:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states. [2020-10-15 03:27:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 03:27:20,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:20,218 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] [2020-10-15 03:27:20,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:20,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:20,231 INFO L82 PathProgramCache]: Analyzing trace with hash 817114819, now seen corresponding path program 1 times [2020-10-15 03:27:20,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:20,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233818738] [2020-10-15 03:27:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:20,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:23,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:24,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:25,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 03:27:25,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:27:25,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-15 03:27:25,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:25,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:25,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:27:25,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 03:27:27,434 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:27:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:27,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:27,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:27,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-15 03:27:27,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:27,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:27,635 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 03:27:27,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233818738] [2020-10-15 03:27:27,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:27,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:27:27,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688581758] [2020-10-15 03:27:27,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:27,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:27,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:27,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:27,679 INFO L87 Difference]: Start difference. First operand 1136 states. Second operand 6 states. [2020-10-15 03:27:29,372 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 496 [2020-10-15 03:27:38,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:38,609 INFO L93 Difference]: Finished difference Result 2010 states and 3468 transitions. [2020-10-15 03:27:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:27:38,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-15 03:27:38,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:38,645 INFO L225 Difference]: With dead ends: 2010 [2020-10-15 03:27:38,645 INFO L226 Difference]: Without dead ends: 1211 [2020-10-15 03:27:38,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2020-10-15 03:27:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1131. [2020-10-15 03:27:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2020-10-15 03:27:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1472 transitions. [2020-10-15 03:27:38,785 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1472 transitions. Word has length 90 [2020-10-15 03:27:38,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:38,786 INFO L479 AbstractCegarLoop]: Abstraction has 1131 states and 1472 transitions. [2020-10-15 03:27:38,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1472 transitions. [2020-10-15 03:27:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 03:27:38,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:38,792 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] [2020-10-15 03:27:38,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:27:38,794 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:38,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:38,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1265288404, now seen corresponding path program 1 times [2020-10-15 03:27:38,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:38,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318788996] [2020-10-15 03:27:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:38,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:39,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:39,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:39,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:41,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:43,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 03:27:43,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:27:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-15 03:27:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:43,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:43,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 03:27:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-15 03:27:45,211 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:27:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:45,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:45,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:45,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:45,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 03:27:45,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:45,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:45,336 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 03:27:45,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318788996] [2020-10-15 03:27:45,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:45,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:27:45,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000655708] [2020-10-15 03:27:45,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:45,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:45,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:45,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:45,340 INFO L87 Difference]: Start difference. First operand 1131 states and 1472 transitions. Second operand 6 states. [2020-10-15 03:27:46,401 WARN L193 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2020-10-15 03:27:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:52,257 INFO L93 Difference]: Finished difference Result 2239 states and 2963 transitions. [2020-10-15 03:27:52,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:27:52,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-15 03:27:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:52,270 INFO L225 Difference]: With dead ends: 2239 [2020-10-15 03:27:52,270 INFO L226 Difference]: Without dead ends: 1377 [2020-10-15 03:27:52,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:27:52,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-15 03:27:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1299. [2020-10-15 03:27:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-10-15 03:27:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1711 transitions. [2020-10-15 03:27:52,375 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1711 transitions. Word has length 91 [2020-10-15 03:27:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:52,378 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1711 transitions. [2020-10-15 03:27:52,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1711 transitions. [2020-10-15 03:27:52,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 03:27:52,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:52,384 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] [2020-10-15 03:27:52,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:27:52,385 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:52,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:52,385 INFO L82 PathProgramCache]: Analyzing trace with hash -554240639, now seen corresponding path program 1 times [2020-10-15 03:27:52,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:52,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110285531] [2020-10-15 03:27:52,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:52,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:52,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:53,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:55,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:55,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:57,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:57,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 03:27:57,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:27:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-15 03:27:57,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:57,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:27:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:58,710 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:27:58,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:58,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:58,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:58,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:58,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-15 03:27:58,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:58,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:58,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:58,885 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 03:27:58,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110285531] [2020-10-15 03:27:58,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:58,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:27:58,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724511867] [2020-10-15 03:27:58,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:58,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:58,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:58,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:58,888 INFO L87 Difference]: Start difference. First operand 1299 states and 1711 transitions. Second operand 6 states. [2020-10-15 03:28:00,016 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 493 [2020-10-15 03:28:04,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:04,817 INFO L93 Difference]: Finished difference Result 2329 states and 3138 transitions. [2020-10-15 03:28:04,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:28:04,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-15 03:28:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:04,826 INFO L225 Difference]: With dead ends: 2329 [2020-10-15 03:28:04,826 INFO L226 Difference]: Without dead ends: 1211 [2020-10-15 03:28:04,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:28:04,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2020-10-15 03:28:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1211. [2020-10-15 03:28:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-10-15 03:28:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1611 transitions. [2020-10-15 03:28:04,886 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1611 transitions. Word has length 92 [2020-10-15 03:28:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:04,886 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1611 transitions. [2020-10-15 03:28:04,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:28:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1611 transitions. [2020-10-15 03:28:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:28:04,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:04,889 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] [2020-10-15 03:28:04,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:28:04,890 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:04,890 INFO L82 PathProgramCache]: Analyzing trace with hash -566756850, now seen corresponding path program 1 times [2020-10-15 03:28:04,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:04,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274958970] [2020-10-15 03:28:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:04,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:09,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:28:09,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:11,137 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:28:11,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:11,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:11,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:11,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:11,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:11,229 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 03:28:11,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274958970] [2020-10-15 03:28:11,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:11,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:28:11,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399175187] [2020-10-15 03:28:11,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:28:11,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:11,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:28:11,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:28:11,233 INFO L87 Difference]: Start difference. First operand 1211 states and 1611 transitions. Second operand 7 states. [2020-10-15 03:28:12,355 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 497 [2020-10-15 03:28:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:17,441 INFO L93 Difference]: Finished difference Result 2106 states and 2835 transitions. [2020-10-15 03:28:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:17,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-15 03:28:17,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:17,449 INFO L225 Difference]: With dead ends: 2106 [2020-10-15 03:28:17,449 INFO L226 Difference]: Without dead ends: 1434 [2020-10-15 03:28:17,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:28:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-10-15 03:28:17,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1211. [2020-10-15 03:28:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-10-15 03:28:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1610 transitions. [2020-10-15 03:28:17,520 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1610 transitions. Word has length 93 [2020-10-15 03:28:17,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:17,521 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1610 transitions. [2020-10-15 03:28:17,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:28:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1610 transitions. [2020-10-15 03:28:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:28:17,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:17,524 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] [2020-10-15 03:28:17,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:28:17,524 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:17,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:17,525 INFO L82 PathProgramCache]: Analyzing trace with hash -569208374, now seen corresponding path program 1 times [2020-10-15 03:28:17,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:17,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727713125] [2020-10-15 03:28:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:17,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:17,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:18,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:21,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:21,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:21,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:21,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:21,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:22,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:22,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:22,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:28:22,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:28:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:28:22,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:22,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 03:28:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:28:23,971 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:28:23,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:23,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:24,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:24,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:24,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:28:24,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:24,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:24,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:24,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:24,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:24,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:28:24,052 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 03:28:24,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727713125] [2020-10-15 03:28:24,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:24,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:24,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915321529] [2020-10-15 03:28:24,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:24,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:24,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:24,054 INFO L87 Difference]: Start difference. First operand 1211 states and 1610 transitions. Second operand 8 states. [2020-10-15 03:28:25,170 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 494 [2020-10-15 03:28:28,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:28,464 INFO L93 Difference]: Finished difference Result 1704 states and 2325 transitions. [2020-10-15 03:28:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:28,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-10-15 03:28:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:28,472 INFO L225 Difference]: With dead ends: 1704 [2020-10-15 03:28:28,472 INFO L226 Difference]: Without dead ends: 1063 [2020-10-15 03:28:28,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:28:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-10-15 03:28:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 860. [2020-10-15 03:28:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2020-10-15 03:28:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1135 transitions. [2020-10-15 03:28:28,524 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1135 transitions. Word has length 93 [2020-10-15 03:28:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:28,525 INFO L479 AbstractCegarLoop]: Abstraction has 860 states and 1135 transitions. [2020-10-15 03:28:28,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1135 transitions. [2020-10-15 03:28:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 03:28:28,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:28,527 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] [2020-10-15 03:28:28,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:28:28,528 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:28,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:28,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1474109221, now seen corresponding path program 1 times [2020-10-15 03:28:28,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:28,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807189885] [2020-10-15 03:28:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:28,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:28,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:29,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:29,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:29,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:30,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:30,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:30,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:31,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:33,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:33,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:33,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:28:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:28:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-15 03:28:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:34,830 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:28:34,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:34,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:34,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:34,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 03:28:34,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:34,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:28:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:28:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:28:34,940 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 03:28:34,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807189885] [2020-10-15 03:28:34,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:34,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:34,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299935138] [2020-10-15 03:28:34,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:28:34,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:34,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:28:34,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:28:34,943 INFO L87 Difference]: Start difference. First operand 860 states and 1135 transitions. Second operand 9 states. [2020-10-15 03:28:36,240 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 492 [2020-10-15 03:28:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:40,018 INFO L93 Difference]: Finished difference Result 2666 states and 3799 transitions. [2020-10-15 03:28:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:28:40,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-10-15 03:28:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:40,029 INFO L225 Difference]: With dead ends: 2666 [2020-10-15 03:28:40,030 INFO L226 Difference]: Without dead ends: 2263 [2020-10-15 03:28:40,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:28:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-10-15 03:28:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 884. [2020-10-15 03:28:40,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-10-15 03:28:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1163 transitions. [2020-10-15 03:28:40,117 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1163 transitions. Word has length 95 [2020-10-15 03:28:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:40,118 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 1163 transitions. [2020-10-15 03:28:40,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:28:40,118 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1163 transitions. [2020-10-15 03:28:40,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 03:28:40,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:40,120 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] [2020-10-15 03:28:40,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:28:40,121 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:40,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:40,121 INFO L82 PathProgramCache]: Analyzing trace with hash 605679297, now seen corresponding path program 1 times [2020-10-15 03:28:40,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:40,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674077874] [2020-10-15 03:28:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:40,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:40,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:41,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:41,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 03:28:45,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:28:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:46,257 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:28:46,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:46,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:46,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:46,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:46,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:46,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 03:28:46,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:46,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:28:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:28:46,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:46,338 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 03:28:46,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674077874] [2020-10-15 03:28:46,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:46,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:28:46,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844750706] [2020-10-15 03:28:46,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:28:46,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:46,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:28:46,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:28:46,340 INFO L87 Difference]: Start difference. First operand 884 states and 1163 transitions. Second operand 6 states. [2020-10-15 03:28:47,472 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 493 [2020-10-15 03:28:50,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:50,287 INFO L93 Difference]: Finished difference Result 1490 states and 2010 transitions. [2020-10-15 03:28:50,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:28:50,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-10-15 03:28:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:50,292 INFO L225 Difference]: With dead ends: 1490 [2020-10-15 03:28:50,292 INFO L226 Difference]: Without dead ends: 800 [2020-10-15 03:28:50,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:28:50,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-15 03:28:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2020-10-15 03:28:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2020-10-15 03:28:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1063 transitions. [2020-10-15 03:28:50,349 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1063 transitions. Word has length 95 [2020-10-15 03:28:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:50,350 INFO L479 AbstractCegarLoop]: Abstraction has 800 states and 1063 transitions. [2020-10-15 03:28:50,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:28:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1063 transitions. [2020-10-15 03:28:50,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 03:28:50,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:50,352 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] [2020-10-15 03:28:50,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:28:50,352 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:50,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:50,353 INFO L82 PathProgramCache]: Analyzing trace with hash 944061676, now seen corresponding path program 1 times [2020-10-15 03:28:50,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:50,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804868754] [2020-10-15 03:28:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:50,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:50,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:50,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:50,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:54,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:54,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:54,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:55,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:55,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 03:28:55,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:28:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 03:28:55,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:55,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 03:28:55,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:56,621 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:28:56,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:56,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:56,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:28:56,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:56,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:56,694 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 03:28:56,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804868754] [2020-10-15 03:28:56,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:56,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:56,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668422034] [2020-10-15 03:28:56,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:56,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:56,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:56,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:56,696 INFO L87 Difference]: Start difference. First operand 800 states and 1063 transitions. Second operand 8 states. [2020-10-15 03:28:57,844 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-10-15 03:29:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:01,869 INFO L93 Difference]: Finished difference Result 1733 states and 2429 transitions. [2020-10-15 03:29:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:29:01,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-15 03:29:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:01,875 INFO L225 Difference]: With dead ends: 1733 [2020-10-15 03:29:01,875 INFO L226 Difference]: Without dead ends: 1442 [2020-10-15 03:29:01,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2020-10-15 03:29:01,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 800. [2020-10-15 03:29:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2020-10-15 03:29:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1062 transitions. [2020-10-15 03:29:01,941 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1062 transitions. Word has length 96 [2020-10-15 03:29:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:01,942 INFO L479 AbstractCegarLoop]: Abstraction has 800 states and 1062 transitions. [2020-10-15 03:29:01,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1062 transitions. [2020-10-15 03:29:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 03:29:01,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:01,944 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] [2020-10-15 03:29:01,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:29:01,944 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:01,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1421749108, now seen corresponding path program 1 times [2020-10-15 03:29:01,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:01,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381926746] [2020-10-15 03:29:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:02,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:02,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:02,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:02,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:05,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:05,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:05,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:07,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:07,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 03:29:07,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:29:07,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 03:29:07,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:07,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:07,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:07,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-15 03:29:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:29:08,149 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:29:08,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:08,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:08,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:08,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:08,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:08,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:29:08,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:08,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:08,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:08,223 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 03:29:08,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381926746] [2020-10-15 03:29:08,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:08,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:08,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670762173] [2020-10-15 03:29:08,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:08,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:08,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:08,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:08,225 INFO L87 Difference]: Start difference. First operand 800 states and 1062 transitions. Second operand 8 states. [2020-10-15 03:29:09,381 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-15 03:29:13,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:13,292 INFO L93 Difference]: Finished difference Result 2163 states and 3055 transitions. [2020-10-15 03:29:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:29:13,292 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-15 03:29:13,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:13,299 INFO L225 Difference]: With dead ends: 2163 [2020-10-15 03:29:13,299 INFO L226 Difference]: Without dead ends: 1860 [2020-10-15 03:29:13,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:13,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-10-15 03:29:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 800. [2020-10-15 03:29:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2020-10-15 03:29:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1061 transitions. [2020-10-15 03:29:13,384 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1061 transitions. Word has length 96 [2020-10-15 03:29:13,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:13,384 INFO L479 AbstractCegarLoop]: Abstraction has 800 states and 1061 transitions. [2020-10-15 03:29:13,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1061 transitions. [2020-10-15 03:29:13,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 03:29:13,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:13,387 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] [2020-10-15 03:29:13,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:29:13,387 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:13,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1271117102, now seen corresponding path program 1 times [2020-10-15 03:29:13,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:13,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776881144] [2020-10-15 03:29:13,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:13,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:13,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:13,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:14,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:14,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:15,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:18,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:18,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 03:29:18,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:29:18,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 03:29:18,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:18,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:18,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:18,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:18,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 03:29:18,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:19,544 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:29:19,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:19,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:19,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:19,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:29:19,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:19,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:19,597 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 03:29:19,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776881144] [2020-10-15 03:29:19,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:19,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:19,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047981465] [2020-10-15 03:29:19,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:19,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:19,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:19,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:19,599 INFO L87 Difference]: Start difference. First operand 800 states and 1061 transitions. Second operand 8 states. [2020-10-15 03:29:20,704 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-15 03:29:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:24,610 INFO L93 Difference]: Finished difference Result 2205 states and 3108 transitions. [2020-10-15 03:29:24,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:29:24,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-15 03:29:24,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:24,620 INFO L225 Difference]: With dead ends: 2205 [2020-10-15 03:29:24,621 INFO L226 Difference]: Without dead ends: 1852 [2020-10-15 03:29:24,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:29:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2020-10-15 03:29:24,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 800. [2020-10-15 03:29:24,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2020-10-15 03:29:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1060 transitions. [2020-10-15 03:29:24,706 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1060 transitions. Word has length 96 [2020-10-15 03:29:24,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:24,707 INFO L479 AbstractCegarLoop]: Abstraction has 800 states and 1060 transitions. [2020-10-15 03:29:24,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1060 transitions. [2020-10-15 03:29:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 03:29:24,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:24,709 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] [2020-10-15 03:29:24,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:29:24,710 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:24,710 INFO L82 PathProgramCache]: Analyzing trace with hash -543134658, now seen corresponding path program 1 times [2020-10-15 03:29:24,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:24,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422586397] [2020-10-15 03:29:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:24,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:25,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:26,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:26,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:29,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:29,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:29,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 03:29:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:30,892 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:29:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:30,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:30,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:30,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 03:29:30,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:30,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:29:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:29:30,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:30,978 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 03:29:30,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422586397] [2020-10-15 03:29:30,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:30,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:30,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945082254] [2020-10-15 03:29:30,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:29:30,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:30,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:29:30,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:29:30,980 INFO L87 Difference]: Start difference. First operand 800 states and 1060 transitions. Second operand 9 states. [2020-10-15 03:29:32,119 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 492 [2020-10-15 03:29:36,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:36,338 INFO L93 Difference]: Finished difference Result 2636 states and 3778 transitions. [2020-10-15 03:29:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:29:36,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-15 03:29:36,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:36,349 INFO L225 Difference]: With dead ends: 2636 [2020-10-15 03:29:36,349 INFO L226 Difference]: Without dead ends: 2253 [2020-10-15 03:29:36,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:29:36,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2020-10-15 03:29:36,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 818. [2020-10-15 03:29:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-10-15 03:29:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1080 transitions. [2020-10-15 03:29:36,453 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1080 transitions. Word has length 96 [2020-10-15 03:29:36,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:36,453 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1080 transitions. [2020-10-15 03:29:36,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:29:36,454 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1080 transitions. [2020-10-15 03:29:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 03:29:36,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:36,455 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] [2020-10-15 03:29:36,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:29:36,457 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:36,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1248748976, now seen corresponding path program 1 times [2020-10-15 03:29:36,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:36,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804081861] [2020-10-15 03:29:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:36,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:36,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:36,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:38,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:39,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:39,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:39,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:41,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:41,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 03:29:41,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:29:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:42,520 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:29:42,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:42,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:42,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:42,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:42,565 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 03:29:42,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804081861] [2020-10-15 03:29:42,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:42,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:29:42,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091482648] [2020-10-15 03:29:42,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:29:42,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:42,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:29:42,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:29:42,567 INFO L87 Difference]: Start difference. First operand 818 states and 1080 transitions. Second operand 6 states. [2020-10-15 03:29:43,599 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 488 [2020-10-15 03:29:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:50,980 INFO L93 Difference]: Finished difference Result 4048 states and 5690 transitions. [2020-10-15 03:29:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:29:50,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2020-10-15 03:29:50,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:50,993 INFO L225 Difference]: With dead ends: 4048 [2020-10-15 03:29:50,993 INFO L226 Difference]: Without dead ends: 3607 [2020-10-15 03:29:50,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:29:51,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2020-10-15 03:29:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 2026. [2020-10-15 03:29:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2026 states. [2020-10-15 03:29:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 2842 transitions. [2020-10-15 03:29:51,201 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 2842 transitions. Word has length 96 [2020-10-15 03:29:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:51,201 INFO L479 AbstractCegarLoop]: Abstraction has 2026 states and 2842 transitions. [2020-10-15 03:29:51,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:29:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 2842 transitions. [2020-10-15 03:29:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 03:29:51,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:51,204 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] [2020-10-15 03:29:51,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:29:51,204 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:51,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:51,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1204485101, now seen corresponding path program 1 times [2020-10-15 03:29:51,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:51,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301539842] [2020-10-15 03:29:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:51,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:52,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:52,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:53,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:53,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:53,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:56,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:56,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 03:29:56,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:29:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:29:56,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:56,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-15 03:29:56,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:57,380 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:29:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:57,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:57,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:57,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:57,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:57,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:29:57,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:57,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:57,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:57,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:57,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:57,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:57,433 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 03:29:57,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301539842] [2020-10-15 03:29:57,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:57,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:57,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425872337] [2020-10-15 03:29:57,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:57,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:57,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:57,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:57,435 INFO L87 Difference]: Start difference. First operand 2026 states and 2842 transitions. Second operand 8 states. [2020-10-15 03:29:58,586 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-15 03:30:02,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:02,841 INFO L93 Difference]: Finished difference Result 5518 states and 8042 transitions. [2020-10-15 03:30:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:30:02,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2020-10-15 03:30:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:02,857 INFO L225 Difference]: With dead ends: 5518 [2020-10-15 03:30:02,857 INFO L226 Difference]: Without dead ends: 4378 [2020-10-15 03:30:02,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:30:02,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2020-10-15 03:30:03,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 2026. [2020-10-15 03:30:03,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2026 states. [2020-10-15 03:30:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 2838 transitions. [2020-10-15 03:30:03,097 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 2838 transitions. Word has length 97 [2020-10-15 03:30:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:03,098 INFO L479 AbstractCegarLoop]: Abstraction has 2026 states and 2838 transitions. [2020-10-15 03:30:03,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 2838 transitions. [2020-10-15 03:30:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 03:30:03,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:03,101 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] [2020-10-15 03:30:03,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:30:03,101 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1031874938, now seen corresponding path program 1 times [2020-10-15 03:30:03,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:03,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014487770] [2020-10-15 03:30:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:03,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:03,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:04,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:04,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:05,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:05,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:05,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:06,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:08,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 03:30:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 03:30:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:09,256 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:30:09,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:09,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:09,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:09,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:30:09,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:09,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:30:09,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014487770] [2020-10-15 03:30:09,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:09,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:30:09,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113420220] [2020-10-15 03:30:09,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:09,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:09,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:09,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:09,310 INFO L87 Difference]: Start difference. First operand 2026 states and 2838 transitions. Second operand 8 states. [2020-10-15 03:30:10,435 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-15 03:30:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:14,784 INFO L93 Difference]: Finished difference Result 7077 states and 10332 transitions. [2020-10-15 03:30:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:30:14,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2020-10-15 03:30:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:14,808 INFO L225 Difference]: With dead ends: 7077 [2020-10-15 03:30:14,808 INFO L226 Difference]: Without dead ends: 5871 [2020-10-15 03:30:14,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:30:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5871 states. [2020-10-15 03:30:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5871 to 2026. [2020-10-15 03:30:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2026 states. [2020-10-15 03:30:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 2836 transitions. [2020-10-15 03:30:15,059 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 2836 transitions. Word has length 97 [2020-10-15 03:30:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:15,059 INFO L479 AbstractCegarLoop]: Abstraction has 2026 states and 2836 transitions. [2020-10-15 03:30:15,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 2836 transitions. [2020-10-15 03:30:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 03:30:15,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:15,062 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] [2020-10-15 03:30:15,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:30:15,062 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:15,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:15,062 INFO L82 PathProgramCache]: Analyzing trace with hash 587398533, now seen corresponding path program 1 times [2020-10-15 03:30:15,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:15,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657384009] [2020-10-15 03:30:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:15,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:15,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:15,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:16,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:16,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:16,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:18,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:18,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:18,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:19,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:19,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:20,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:20,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 03:30:20,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:30:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:30:20,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:20,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:30:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:30:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 03:30:20,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:21,209 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:30:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:21,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:21,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:21,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:21,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 03:30:21,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:21,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:30:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:30:21,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:21,282 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 03:30:21,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657384009] [2020-10-15 03:30:21,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:21,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:30:21,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152675574] [2020-10-15 03:30:21,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:21,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:21,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:21,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:21,284 INFO L87 Difference]: Start difference. First operand 2026 states and 2836 transitions. Second operand 8 states. [2020-10-15 03:30:22,304 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 491 [2020-10-15 03:30:26,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:26,553 INFO L93 Difference]: Finished difference Result 10518 states and 15261 transitions. [2020-10-15 03:30:26,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:30:26,553 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2020-10-15 03:30:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:26,571 INFO L225 Difference]: With dead ends: 10518 [2020-10-15 03:30:26,571 INFO L226 Difference]: Without dead ends: 8637 [2020-10-15 03:30:26,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:30:26,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8637 states. [2020-10-15 03:30:26,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8637 to 2046. [2020-10-15 03:30:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2046 states. [2020-10-15 03:30:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 2842 transitions. [2020-10-15 03:30:26,921 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 2842 transitions. Word has length 97 [2020-10-15 03:30:26,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:26,921 INFO L479 AbstractCegarLoop]: Abstraction has 2046 states and 2842 transitions. [2020-10-15 03:30:26,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:30:26,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 2842 transitions. [2020-10-15 03:30:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:30:26,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:26,923 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] [2020-10-15 03:30:26,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:30:26,924 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:26,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1537133881, now seen corresponding path program 1 times [2020-10-15 03:30:26,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:26,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188373496] [2020-10-15 03:30:26,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:26,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:27,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:27,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:27,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:30,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:30,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:31,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 03:30:31,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:33,198 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:30:33,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:33,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:33,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:33,263 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 03:30:33,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188373496] [2020-10-15 03:30:33,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:33,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:30:33,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015082761] [2020-10-15 03:30:33,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:30:33,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:30:33,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:30:33,266 INFO L87 Difference]: Start difference. First operand 2046 states and 2842 transitions. Second operand 9 states. [2020-10-15 03:30:34,435 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 500 [2020-10-15 03:30:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:38,126 INFO L93 Difference]: Finished difference Result 6873 states and 9966 transitions. [2020-10-15 03:30:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:30:38,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-15 03:30:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:38,140 INFO L225 Difference]: With dead ends: 6873 [2020-10-15 03:30:38,141 INFO L226 Difference]: Without dead ends: 5603 [2020-10-15 03:30:38,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:30:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5603 states. [2020-10-15 03:30:38,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5603 to 1902. [2020-10-15 03:30:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2020-10-15 03:30:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2641 transitions. [2020-10-15 03:30:38,495 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2641 transitions. Word has length 98 [2020-10-15 03:30:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:38,495 INFO L479 AbstractCegarLoop]: Abstraction has 1902 states and 2641 transitions. [2020-10-15 03:30:38,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:30:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2641 transitions. [2020-10-15 03:30:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:30:38,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:38,498 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] [2020-10-15 03:30:38,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:30:38,499 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:38,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:38,499 INFO L82 PathProgramCache]: Analyzing trace with hash -620204547, now seen corresponding path program 1 times [2020-10-15 03:30:38,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:38,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042849984] [2020-10-15 03:30:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:38,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:39,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:40,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:40,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:42,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:43,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:30:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-15 03:30:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:44,672 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:30:44,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:44,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:44,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:44,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:44,729 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 03:30:44,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042849984] [2020-10-15 03:30:44,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:44,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:30:44,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295374600] [2020-10-15 03:30:44,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:30:44,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:44,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:30:44,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:30:44,731 INFO L87 Difference]: Start difference. First operand 1902 states and 2641 transitions. Second operand 9 states. [2020-10-15 03:30:45,768 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 494 [2020-10-15 03:30:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:30:50,151 INFO L93 Difference]: Finished difference Result 6749 states and 9789 transitions. [2020-10-15 03:30:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:30:50,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-15 03:30:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:30:50,161 INFO L225 Difference]: With dead ends: 6749 [2020-10-15 03:30:50,161 INFO L226 Difference]: Without dead ends: 5589 [2020-10-15 03:30:50,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:30:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5589 states. [2020-10-15 03:30:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5589 to 1868. [2020-10-15 03:30:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2020-10-15 03:30:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2589 transitions. [2020-10-15 03:30:50,495 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2589 transitions. Word has length 98 [2020-10-15 03:30:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:30:50,495 INFO L479 AbstractCegarLoop]: Abstraction has 1868 states and 2589 transitions. [2020-10-15 03:30:50,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:30:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2589 transitions. [2020-10-15 03:30:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:30:50,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:30:50,497 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] [2020-10-15 03:30:50,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:30:50,497 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:30:50,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:30:50,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1651094642, now seen corresponding path program 1 times [2020-10-15 03:30:50,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:30:50,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295762196] [2020-10-15 03:30:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:30:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:50,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:50,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:51,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:52,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:52,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:53,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:53,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:54,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:54,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:55,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:55,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:30:55,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:30:55,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:30:55,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:55,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:30:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:30:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 03:30:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:56,675 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-15 03:30:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:30:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:30:56,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:30:56,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:30:56,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:30:56,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:30:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:30:56,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:30:56,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:30:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:30:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:30:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:30:56,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:30:56,727 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 03:30:56,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295762196] [2020-10-15 03:30:56,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:30:56,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:30:56,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053566525] [2020-10-15 03:30:56,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:30:56,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:30:56,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:30:56,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:30:56,729 INFO L87 Difference]: Start difference. First operand 1868 states and 2589 transitions. Second operand 8 states. [2020-10-15 03:30:57,847 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-15 03:31:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:31:02,665 INFO L93 Difference]: Finished difference Result 3946 states and 5648 transitions. [2020-10-15 03:31:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:31:02,666 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-10-15 03:31:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:31:02,671 INFO L225 Difference]: With dead ends: 3946 [2020-10-15 03:31:02,671 INFO L226 Difference]: Without dead ends: 2746 [2020-10-15 03:31:02,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:31:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states.